HOUSTON -

Police are investigating after the body of an 18-year-old was found Saturday night at Keith Weiss Park in northeast Houston.

Police said Martin Ortiz, Jr. was found shot in the park next to the playground.

It's unclear what Ortiz, 18, was doing at the park or whether he was with anyone.

Police said there are no known witnesses to the shooting at this time.

Anyone with information in this case is urged to contact the HPD Homicide Division at 713-308-3600 or Crime Stoppers at 713-222-TIPS.