The Coast Guard rescued four people stranded on a boat for more than eight hours.
Two adults and two children were found early this morning in Saginaw Bay.
Just after midnight last night, rescue crews were notified that a 20 foot boat was stranded.
A rescue boat and a helicopter found the boat and towed it to the Saginaw River Station.
There were no injuries.
An alternator and battery failure caused the boat to become disabled.