Navy divers will aid in recovery efforts at the site of the Aug. 1 bridge collapse in Minneapolis, Defense Department officials said Aug. Defense Secretary Robert M. Gates approved a request from Transportation Secretary Mary Peters over the weekend. The westbound Interstate 35 bridge over the Mississippi River collapsed during the evening rush hour. Five people are known dead, with 98 injured. Minneapolis officials said 24 of those injured remain in critical condition. Officials said eight more people remain unaccounted for in the collapse. Navy divers will help state and local divers examine wreckage and clear debris. The divers will come from Mobile Dive and Salvage Unit 2, based in Little Creek, Va.