ST. LOUIS (AP) – Missouri Gov. Jay Nixon said he didn’t know the surveillance video from a convenience store was going to be released.

Nixon appeared on NBC’s “Meet the Press” Sunday and said the release of the footage “put the community, and quite frankly, the nation on alert again.”

Nixon said on ABC’s “This Week” that he was not happy with the release of the video, which police said shows 18-year-old Michael Brown stealing a box of cigars before he was killed by a white officer on Aug. 9.

Nixon said the video “appeared to cast aspersions” on Brown. Ferguson Police have said Officer Darren Wilson didn’t know the 18-year-old was a suspect at the time of the shooting.

The governor also appeared on CNN’s “State of the Union,” where he said it’s important that St. Louis County prosecutors and the U.S. Justice Department “get (the investigation) right.”

Nixon imposed a curfew Saturday after days of protests.