Investigators are looking for a culprit who smashed the front window of a Calgary restaurant last week and hurled what they believe was a Molotov cocktail through the opening.

Surveillance video from inside Lê La Vietnamese restaurant at 6624 Centre Street South shows the incident as it unfolded at about 4:15 a.m. on April 7.

The culprit first breaks the front window and then tosses in an incendiary device, believed to be a Molotov cocktail.

"The video shows that the suspect's clothing caught on fire," police said in a release.

The culprit would likely have burned clothing and may have suffered burns.

The perpetrator was wearing dark shoes, blue jeans, possibly a plaid jacket and was carrying a backpack.

Anyone with information about the arson attack is asked to call police at 403-266-1234 or contact Crime Stoppers.