After a two hour break from searching the 49 square miles of the most hard hit area within Oklahoma City, Deputy Fire Chief Cecil Clay announced that crews are gearing up for a secondary grid search.

“Anywhere we saw a shelter we checked those,” Clay said in a 7 a.m. press conference. “And we’re going back out this morning doing a secondary search.”

City officials say that 40 to 50 homes were destroyed and another 30 to 40 were damaged, and about a half dozen businesses were destroyed Monday when tornadoes raked the city.

Statewide, the death toll at daybreak remained at five, with a sixth person apparently suffering a fatal heart attack.

While most roads in Oklahoma City are open, police have restricted access to four of the most devastated neighborhoods near Choctaw. Restricted neighborhoods include Heritage Estates, Deerfield Estates, Deerfield West and Liberty Creek, Police Capt. Patrick Stewart said Tuesday morning.