An overcrowded ferry sank near the Thai seaside resort of Pattaya killing at least six people.

Two Russians, three Thais and one Chinese person died in the accident.

Rescue boats carrying passengers from the ferry were seen approaching the shore in Pattaya. 

Ambulances were present at the scene and medical teams treated the rescued.

The shuttle ferry, which travelled between Koh Lan Island and Pattaya, is reported to have been carrying approximately 200 passengers, despite a capacity limit of 150.

Police said engine trouble resulted in the ferry sinking.

The ferry was not equipped with enough life-jackets and some of the passengers could not swim, according to police reports based on eyewitness accounts.