Man dies in Rosenberg police custody

ROSENBERG, TX (KTRK) -- A 39-year-old man was found unresponsive at a Rosenberg jail and later pronounced dead at a local hospital on Saturday morning, officials say.

The victim, Roberto Velasquez, had been been arrested on Friday evening. Officers investigating a possible assault determined that Velasquez had outstanding warrants. He was then taken into custody.

The next morning, he was found unresponsive in his cell just after 8am. Officers called EMS and began life-saving meausures on Valasquez, but he was pronounced dead at Oak Bend Hospital at 9:19am.

Texas Rangers and the Fort Bend County District Attorney's office will launch investigations into Velasquez's death.

This is a developing story. Stay with Eyewitness News for the latest.