St Joseph police say a man was arrested this morning after trying to rob a woman in the WalMart parking lot and then flee in a city bus.

At about 10:30 Friday morning, the woman with three kids was accosted by a man in the parking lot of the WalMart on the South Belt Highway.

Another woman noticed the confrontation, and police were called to the scene.

Police Captain Kevin Castle says the man may or may not have had a gun.  He did not have a well-planned getaway.  The suspect was arrested in a city bus that was still idling in the parking lot when officers arrived.

Passengers were removed from the bus and the man was taken into custody. Authorities say the man is well known to police.

There were no injuries.