Crews from the Travis County Sheriff's office returned to Lake Travis Sunday morning to continue the search for a missing swimmer.

The search began Saturday night after a family member reported a man in his 50s went under water and did not resurface.

Multiple agencies searched the area near Tom Huges Park for several hours on Saturday before switching from rescue to recovery mode.

The search ended when it became too dark to continue.

Sunday morning, TCSO returned with two boats to do a grid and sonar search in the area where he was last seen.

At this time the search is still on going.