MONROE, Mich. (AP) -- The U.S. Coast Guard and others are searching Lake Erie for four fishermen whose 19-foot boat set sail a day earlier.

The men, who are between 52 and 75 years old, left Sterling Park in Monroe at 8 a.m. Thursday.

A family member notified the Coast Guard around 10 p.m. Thursday when the men didn't return home.

Boats, helicopters and other types of aircraft from the U.S. and Canada are looking for them Friday.

The wife of one of the fishermen told the Coast Guard she talked to her husband -- the boat's owner -- by cell phone around noon Thursday and nothing seemed to be amiss.

She said life jackets and a global positioning system were board.

(Copyright 2009 by The Associated Press. All Rights Reserved.)