PITTSBURGH — Authorities say five people were arrested following an Occupy Pittsburgh protest at the city’s convention center.

Police said about 100 protesters gathered at about 6 p.m. Tuesday outside the David L. Lawrence Convention Center, where oil field services firm Halliburton Co. was hosting a conference for oil and gas industry members.

Police said the crowd was told to disband, and five people who resisted were arrested.

Officers said they were taken to Allegheny County Jail and face charges including defiant trespass, failure to disperse, disorderly conduct and obstructing traffic.