LIPE ISLAND, Thailand — A wooden fishing boat carrying hundreds of desperate migrants from Myanmar moved farther out to sea on Friday after the Thai authorities concluded that the passengers wanted to continue their journey, instead of disembarking in Thailand, according to an aid group involved in negotiations over the vessel’s future.

But a Thai reporter who witnessed the boat’s departure said that some of those aboard did not appear to want to leave.

The vessel, which passengers said had been turned away from Malaysia, is part of a rickety flotilla from Myanmar and Bangladesh carrying thousands of migrants, many of them Rohingya Muslims, fleeing persecution or economic hardship, with no country willing to take them in.