A drive-in movie theatre in Mont St. Hilaire was hit Sunday morning by a group of thieves who tied up an employee and took off with the evening's proceeds.

At 1 a.m., a group of suspects tied the drive-in worker to a tree at the Cine Parc Mont St. Hilaire, and stole the contents of the cash register.

They set the drive-in building on fire and fled. The employee freed himself and called police.

He was uninjured in the attack and spoke to police about the incident Sunday morning.

Police are seeking the suspects.