CHESAPEAKE BEACH - Search efforts resumed yesterday in the Chesapeake Bay for a Bladensburg man and his stepdaughter, missing after a 16-foot boat capsized and sank a mile east of this northern Calvert County community.

Using a sonar-equipped boat, helicopters and divers, rescuers searched for Gregory Whitaker, 24, and Lauryn Greenhill, 7, who were aboard the vessel Sunday afternoon when it began taking on water and having engine trouble, said Heather Lynch, a spokeswoman for the state Department of Natural Resources.

Three others were rescued.

Coast Guard officials said winds were up to 20 knots, and a small craft advisory had been in effect due to high waves - conditions that were a factor in the accident, Lynch said.