Authorities say the gunmen who have held a police station in the Armenian capital for nine days have set a police vehicle on fire as a crowd of about 2,000 people gathered at the standoff site.

The gunmen seized the station on July 17, killing one officer and taking others hostage to demand the release of an opposition figure who was arrested last month. The last four hostages were released on Saturday, but the gunmen are refusing to lay down arms.

Police shut off electricity to the station after the hostage release and are refusing to deliver food. Police spokesman Ashot Aharonian said on Facebook that the occupiers set a police vehicle on fire Monday night, the third vehicle torching in two days. There were no immediate reports of injuries.