The federal presence in Moore has increased since teams from FEMA, ATF and FBI began arriving on Tuesday.
The National Guard and U.S. military personnel from nearby Tinker Air Force Base have been involved since the beginning, assisting crews from state, county and municipal agencies.
Rep. Tom Cole promised recovery support from Washington is bipartisan.
Cole, R-Moore, flew in on Tuesday and found his home is intact. Power and water were off, but have since been restored.
“This is my home and has been for 53 years, so what happens here is extraordinarily important to me,” Cole said.
The Congressman worked his way through college as a groundskeeper at the schools, including Plaza Towers Elementary, he said, but the school is no longer recognizable.
“I had no idea it was a school just looking at the structure, the wreckage was so totally complete,” Cole said.
Officials ask people to avoid the affected area to reduce traffic congestion.
“This is still a very active recovery site,” Gov. Mary Fallin said.
People who want to help can donate to the American Red Cross or to Oklahoma Strong, the relief effort run through United Way.
“I think a big need now is debris removal, and we will be working with Oklahoma on expedited debris removal and then we will be working with individual homeowners so we can get that debris out of there,” Napolitano said. “I’m pleased to hear the charity you’re forming is called Oklahoma Strong.”
Naplitano said Oklahoma’s recovery efforts are impressive and a model for others.
“I’m no stranger to disaster, but this is a rough one,” said Red Cross CEO Gail McGovern. “We’re on the ground. We’re providing food, shelter and comfort.”