A number of important documents were stolen during a break-in at a business in Grand Falls-Windsor Thursday. 

RCMP said thieves entered the Tai Sun Restaurant in the early-morning hours and took off with a quantity of cash and two rifles. 

They also stole immigration papers belonging to the owner, his wife and their four children.

Const. Ian Dollimount said the theft of guns is worrisome.

RCMP Const. Ian Dollimount

RCMP Const. Ian Dollimount says the theft of guns is 'especially worrisome.' (CBC)

"We're still actively investigating the matter, but we're looking for any assistance at all from the general public to lead us to who is responsible would be greatly appreciated, especially with the firearms that are missing," said Dollimount. 

Surveillance video shows two men breaking in through the restaurant's side door.

The restaurant's owner said the suspects then headed to the safe.

In addition to the  immigration papers, the suspects took some gold jewellery.

Police are hoping for any leads that can help them to identify the thieves.