A mob comprising anti-seaport protesters on Sunday night attacked the Vizhinjam police station here after one person was arrested in connection with violent protests that took place against the construction of a port on November 26 here.

The agitators besieged the police station seeking the release of those taken into custody over the clashes that erupted between two groups in Vizhinjam on Saturday and damaged the police vehicles parked outside. A few policemen sustained injuries in the attack.