MANHATTAN - Police and fire officials say about 74 people were hurt this morning after the Seastreak Wall Street ferry that departed from Conners Highlands struck a dock in Manhattan.

Officials say two people are in critical condition. There were 326 passengers on the vessel when it arrived at around 8:45 a.m. at Pier 11.

Video from Chopper 12 shows some patients were carried out strapped to flat-board stretchers, their heads and necks immobilized. Several passengers on stretchers were spread out on the dock, surrounded by emergency workers and firefighters.

About 11 of them were seriously hurt. One suffered a severe head injury falling down a stairwell.

Seven hospitals treated the patients.

A corner of the ferry appeared to have been ripped open like a tin can. It's unclear exactly what caused the incident. A National Transportation Safety Board team has been dispatched to lead the investigation.

AP wire services contributed to this report.