SUNAPEE, N.H. — A dinner cruise ship docked at New Hampshire’s Sunapee Harbor has taken on water.

The stern of the MV Kearsarge was in about 8 feet of water Friday. It was surrounded by a boom to contain any fuel leaks.

WMUR-TV reported that authorities said the ship started to go under about 7:45 p.m. Thursday. They said someone heard the ropes snapping.

“I thought I was imagining things,” said Al Peterson, one of the ship’s captains, who inspected the damage Friday.

Tim Fenton, son of the ship’s owners, said he had done a check earlier Thursday and that everything looked fine.

There’s been an MV Kearsarge that’s taken visitors around Lake Sunapee from May through October for over 30 years. This ship has been in service since 1980.

“We had our rehearsal dinner on it when we got married, and we ride on it every couple of years and take our kids out or when family comes,” said Aimie Ayers of Newbury.

It was not immediately known what caused the problem.

The New Hampshire Marine Patrol is assessing the situation.

Authorities said they may have to use cranes to remove the ship.

No injuries were reported.