A seaplane makes a hard landing in the East River near Manhattan’s Skyport terminal and is towed to dock after emergency crews rescue all aboard.The New York City Fire Department and the New York Police Department lead response boats and fireboats to the site near 23rd Street and FDR Drive while a helicopter circles overhead.Medical staff treat two people for minor injuries and authorities report no fatalities; witnesses in Queens, Brooklyn and Manhattan captured footage of the plane listing with its left wing in the water.The Federal Aviation Administration and local investigators open a probe into the landing; officials note the incident follows a similar East River seaplane mishap less than a month ago.