Authorities in the wealthy city-state of Monaco have launched a manhunt that’s stretched across the border into France after several people were wounded in an explosion caused by a bomb that was planted in a residential building.

The bomb exploded shortly before 9 p.m. local time Monday, with the wounded, including a child, transported to hospital in Nice in neighboring France, according to the Monaco government.

A man was caught on camera fleeing to Beausoleil, a French town which borders Monaco, the town’s mayor Gérard Spinelli said in a press conference, according to the Associated Press.

About 40 French soldiers and two helicopters have been deployed to assist with the chase, according to CNN-affiliate BFMTV.

Violent crime is virtually nonexistent in Monaco, a city state located on the Mediterranean Sea, home to roughly 40,000 people and known as a playground for the wealthy.