OVERLAND, Mo. (AP) — The mother of a 6-year-old St. Louis County girl is demanding answers after the child was placed on the wrong school bus and dropped off alone.

Ritenour School District officials tell KMOV-TV that a series of mistakes are to blame.

Marvin Elementary School first-grader Wednesday Nesbit was placed on the wrong bus Monday afternoon. The driver dropped her off at the wrong stop and left her alone, violating district policy for a student in kindergarten or first grade.

Amy Nesbit says her child was missing for 90 minutes before two women saw her and contacted police, who picked up Wednesday.

An official with First Student, the school bus operator, called the incident unacceptable and says an internal investigation is underway. Ritenour is also investigating what happened.

KANSAS CITY, Mo. (AP) — A federal prosecutor in Kansas says a prison drug-smuggling scheme in which six people are charged actually may involve more than 90 inmates and dozens of outsiders who assisted them.

Assistant U.S. Attorney Erin Tomasic recently has told a judge she assumes more Leavenworth Detention Center employees may be charged than the one already being prosecuted.

According to transcripts of the July 21 hearing in Kansas City, Kansas, Tomasic said “new targets” of the investigation are being identified “at an alarming rate.”

The 1,126-bed lockup is run under contract by the Corrections Corporation of America and is separate from the federal prison in Leavenworth.

The case is at the center of a legal storm over privacy rights involving prison recordings of confidential lawyer conversations with clients at the Leavenworth lockup.

BISMARCK, N.D. (AP) — The chairman of the Standing Rock Sioux Tribe says he has contacted the White House and met with North Dakota’s senators in an effort to halt construction of a $3.8 billion, four-state oil pipeline.

David Archambault II says he met Wednesday with North Dakota Sens. John Hoeven and Heidi Heitkamp to “express concerns” about the Dakota Access pipeline.

The pipeline would cross the Missouri River just north of the Standing Rock reservation and also travel through South Dakota and Iowa to Illinois.

Archambault says he is calling for peaceful protests of the pipeline. Archambault and others have been arrested in the past week for interfering with construction in southern North Dakota.

North Dakota transportation officials on Wednesday closed a several-mile stretch of Highway 1806 because of the protest along the road.

ST. LOUIS (AP) — Emergency managers in southeast Missouri are monitoring a levee at Poplar Bluff after torrential rains caused significant flooding along the Black River.

Butler County emergency management director Robbie Myers says a levee breached Tuesday in a rural area near Poplar Bluff, swamping hundreds of acres of farmland but causing only limited damage to structures.

More concerning was the fact that water was overtopping a levee in and near Poplar Bluff, a town of about 17,000 residents not far from the Arkansas border. Myers says that if the levee breaches, 100 people will have to be evacuated.

Butler County received 7 inches of rain over the weekend and Monday, with some reports of up to 11 inches. Thunderstorms are in the forecast again for Friday and Saturday.

TOPEKA, Kan. (AP) — The Kansas Corporation Commission has granted several requests to intervene in the proposed $12.2 billion merger between Topeka-based Westar Energy and Great Plains Energy.

Requests from Occidental Chemicals, Midwest Energy and the International Brotherhood of Electrical Workers were granted Tuesday.

At least 15 other entities have either filed or been granted permission to intervene in the proposed merger. They say they have a particular interest in whether or the merger receives approval and how the merger is structured.

Kansas City Power and Light’s parent company, Great Plains, wants to purchase Westar for $8.6 billion, plus $3.6 billion to acquire Westar’s debt.

Great Plains and Westar hope to finalize the merger next year.

WICHITA, Kan. (AP) — A federal judge has thrown out the indictment against a former Bel Aire police officer accused of making a false statement during a federal investigation.

The move Wednesday is at the request of prosecutors and comes just days before Robert S. McCaslin was to go to trial.

Former Bel Aire Chief John Daily faces sentencing Friday for his role in the scheme to buy and sell discounted firearms by falsely claiming they would be used for law enforcement purposes. He has pleaded guilty to a misdemeanor theft charge.

Another former Bel Aire police officer, Ricky L. Swanson, is scheduled for a change-of-plea hearing on Sept. 8.

Bel Aire is a small suburban community just north of Wichita.

FULTON, Mo. (AP) — A Columbia woman has been indicted in connection with a double homicide.

The Columbia Daily Tribune reports that 27-year-old Jennifer Grayson was charged last week in Callaway County with being an accessory to first-degree assault, first-degree burglary and two counts of accessory to first-degree murder.

Her boyfriend, 36-year-old Dale Horton, previously was charged with shooting his mother, Sherry Horton, and his brother-in-law, Joshua Griffith, in April near Fulton. Grayson and Dale Horton also are accused of stealing jewelry, money and a pickup truck.

Court records say Horton admitting to shooting the victims and said Grayson was with him. His trial is scheduled for October.

Grayson and Horton are jailed on $5 million bonds. Grayson’s attorney declined comment Wednesday.

GARDEN CITY, Kan. (AP) — Authorities have dismissed child pornography charges against a former teacher but the investigation is continuing.

Finney County authorities said Wednesday that three counts of sexual exploitation of a child filed in January against Steven Thompson were dismissed.

KAKE-TV reports assistant county attorney William Votypka says if the ongoing investigation discovers more evidence, authorities wouldn’t be able to pursue those charges if they are still prosecuting the original case.

The investigation began while Thompson while working at Garden City Community College. Authorities say they found child pornography on his work computer, another computer, and other devices.

Thompson was hired in April 2015 by the Wichita school district. His background check didn’t indicate his legal problems because he hadn’t been charged when he was hired in Wichita.

SHAWNEE, Kan. (AP) — Authorities say a juvenile has died while swimming and paddle boarding with friends at a neighborhood lake in suburban Kansas City.

Shawnee police said in a news release that officers were called Tuesday to Lakeview Estates after the victim went missing. The release said the victim’s friends weren’t sure if he left or if he was still in the water because they didn’t see him go under.

A search began, and a dive team found the boy’s body. His name wasn’t immediately released, pending notification of his extended family. An autopsy is scheduled for Wednesday.