LAWRENCE, Kan. (AP) — Lawrence police say there wasn’t probable cause to arrest a man after a three-hour armed standoff at an apartment complex.

The Lawrence Journal-World reports the man was taken into custody Monday after police obtained a search warrant to enter his apartment.

Officers believed he was connected to an alleged aggravated assault in which a person’s car was taken and a man threatened the alleged victim with a handgun.

Police spokesman Sgt. Trent McKinley says officers determined there wasn’t enough probable cause to book the suspect into jail so he was released after briefly taken into custody.

McKinley declined to provide additional details of the standoff because of the ongoing investigation.