Hong Kong: Thirty-eight people were injured when two boats collided late in Hong Kong, authorities said, the latest accident to hit the city’s busy waterways.

Authorities said the collision occurred just off the outlying island of Cheung Chau between a mainland Chinese vessel and a high speed ferry.

“A Macau ferry collided with a vessel from the mainland. Thirty-eight passengers on the Macau ferry were slightly injured and sent to Cheung Chau hospital,” a government spokeswoman said.

Passenger ferries regularly cover the hour-long distance between Hong Kong and Macau.

Authorities were unable to confirm whether anybody was missing or whether the boats had returned safely to shore.

Earlier this month, 11 crew members from a Chinese cargo ship went missing after it collided with a container vessel and sank just outside Hong Kong waters.