CHICAGO (CBS) — Chicago police have resumed their search for two people still missing after a boat capsized in Lake Michigan on Saturday, leaving a woman dead and a man hospitalized.

The U.S. Coast Guard earlier suspended its search, as it does not perform recovery searches. The Coast Guard searched for more than a day before suspending the search Sunday night.

“Only after a probable search area is saturated with the appropriate assets and resources, and persons lost or in distress are still not located, is a decision made to suspend a case,” a Coast Guard spokesman said in an email Monday morning.

Four people went into the water when their boat capsized about 7 miles off shore from the 31st Street marina around 7 p.m. Saturday. Two victims who were still missing as of Monday are feared to have been in 60-degree water for more than 40 hours. It is believed they both were wearing life jackets when they went into the water.