Investigators are trying to determine what caused part of the ceiling to collapse at the NSLC in Wolfville, N.S., on Monday.

Nova Scotia RCMP say officers received a call around 3 p.m. that the ceiling at the NSLC on Front Street had caved in.

Witnesses say, moments before the collapse, they heard “creaking and cracking.” An announcement was made shortly after to evacuate the building.

“I looked up and I thought someone in the ceiling was dropping a box,” says customer Jonathan Murray. “All of a sudden the ceiling came down and all the (employees) were yelling, ‘Get out, get out.’”

A NSLC spokesperson says none of the four employees or customers in the store were injured.

"It's more than half the store. The ceiling has collapsed over more than half the store, that's come down onto the shelving of course and damaged some product as well, so we'll be investigating and determining how much damage has been done and we'll do a full investigation to find out exactly what happened," said spokesperson Beverley Ware.

The investigation has been taken over by Occupational Health and Safety officers with the Department of Labour.

The location is the only NSLC in Wolfville. The Nova Scotia Liquor Corporation says it will not reopen the location until it is certain the building is structurally sound.