A man is in police custody after someone allegedly walked into a Saskatoon tax office and told staff he had a gun.

No one was hurt in the incident.

It started just after 10 a.m. CST when, according to witnesses, a disgruntled customer left the Canada Revenue Agency on the 300 block of 3rd Ave. N.

At least six police cars blocked the street for about 20 minutes.

Police drew weapons and arrested a man in his late 40s.

Police searched his truck and are holding him for questioning.

There's no word yet on charges.