A Hudson River ferry boat from the World Financial Center made a hard landing at its Jersey City pier, injuring several passengers.

It was unclear how many people were hurt in the 7:30 p.m. Friday accident.

Ferry operator New York Waterway reported six, and cops counted 17. All of the injuries appeared minor.

“There was no damage to the ferry, no damage to the dock and no impact on service,’’ said Waterway spokesman Pat Smith.