Several people were injured, one of them critically, after a seaplane crashed off the coast of Washington state on Thursday, authorities said. The airplane was flying from Kenmore Air Seaplane Base to Roche Harbor Seaplane Base. Read More on NewsThe Coast Guard, along with the U.S. Navy, Canadian and local responders, launched assets to assist with the rescue, the ‌Coast Guard said. "Kenmore Air is fully cooperating with the investigating authorities, and we will continue providing verified information as it becomes available." The National Transportation Safety Board (NTSB) and the FAA will investigate the cause of the emergency landing and fire, the Coast Guard said.