A Mexican Navy training sailboat with nearly 300 people on board struck the underside of the Brooklyn Bridge on Saturday night, the New York Police Department said.

Several people needed help after the impact, a spokeswoman for the Police Department said. No other information was immediately available.

The masts of the ship, which was flying a giant Mexican flag, snapped when they hit the underside of the bridge, according to video posted on social media.

The vessel lurched, but stayed upright as it came to a stop at the Brooklyn Promenade about 8:30 p.m., according to video and images from the scene. Its masts appeared to be badly damaged.

“The status of personnel and equipment is being reviewed by naval and local authorities, who are providing support,” according to a social media post from the Mexican secretariat of the navy.

There were 277 people on board, a Fire Department official said. Among those injured, three were deemed to be in critical condition and another 17 were serious.

Shayla Colon contributed reporting.

This is a developing story and will be updated.