Authorities search for missing person at Lake Ray Roberts

Multiple agencies are searching for a man who went underwater at Lake Ray Roberts on Sunday and has not surfaced, officials said.

Lewisville FD said its Dive Team and Battalion Chief 1 have been dispatched for mutual aid along with the Pilot Point and Denton Fire Departments. Texas Game Wardens in Denton County and Texas State Park Police also responded.

Crews are asking boaters and visitors in the area to give dive teams and emergency vessels space to operate safely as the search continues.  

Texas Game Wardens said they and partner agencies used side scan sonar to search and collect information in preparation for continued search efforts on Monday. The Texas Game Warden Underwater Search and Recovery Team will also be responding with advanced sonar technology.

This is a developing story. CBS News Texas will provide updates as they become available.