LONDON, Ont. - Police in London, Ont., arrested a man today following a standoff.

The incident followed a 911 call from a person saying someone wielding a gun had assaulted them.

On arrival at an apartment, police were told the attacker was hiding inside.

Tactical officers sealed off the area and negotiated with a man, who surrendered Sunday morning.

Police found no guns but are trying to find the person who made the initial gun call.

Doug Lush, 39, of London, was arrested on two outstanding probation warrants.