Search efforts continued Monday for a 23-year-old Florida man missing in Lake Lanier, officials said. “We have just begun searching with sonar again … and will continue throughout the day,” Mark McKinnon, Georgia Department of Natural Resources spokesman, said before 9:30 a.m. There was still no new information just before 5 p.m. Kevin Theodore Husum, of Panama City, Fla., has been missing since Saturday evening, when, according to witnesses, he fell off a pontoon boat in waters off Three Sisters Island, went under and did not resurface. Since then, DNR rangers and deputies from Hall and Forsyth counties have conducted “surface searches and with sonar equipment around the clock,” a DNR news release states.