09/13/2011 05:33 EDT | Updated 11/13/2011 05:12 EST

Montreal daycare a target of arson for 2nd time

Police are investigating another attempted arson at a daycare in Montreal's east end.

It was the second attack at the Bébé Einstein daycare this month.

A Molotov cocktailwas thrown at the glass door of the building on Boulevard de la Rivière-des-Prairiessometime overnight Monday, Montreal police said.

The incendiary device didn't penetrate the door and damage was minor.

The remains of the Molotov cocktailwere discovered Tuesday morning when a worker arrived and called police.

A similar incident on Sept. 3 caused damage to the inside of the building and forced it to be shuttered while repairs were made.

The daycare was set to reopen Tuesday morning.

The investigation is ongoing and police have no suspects.