One man is missing and another man was injured after a boat collision Wednesday in a Vermont bay, authorities said.

Colchester police Lt. Doug Allen said two power boats collided on Malletts Bay at about 6:30 p.m.

Officials told the Burlington Free Press that there were four people on one boat and two on the second. The boat with four people sank, but they all made it back to shore.

The second boat was damaged, but didn’t sink. One person on that boat was hurt and the other is still missing.

According to the paper, a U.S. Border Patrol helicopter and rescue personnel searched several hours for the missing man. One diver entered the bay, but wasn’t able to find him.

Police said the crash was nothing more than an accident.

Police said search efforts will increase with more divers and boats Thursday morning.

The Associated Press contributed to this report.