Two inmates flee jail authorities after escaping a Texas jail Tuesday, and the police are on the lookout for both men.

Brian Tucker of Sulphur Springs and John Marlin King of Cumby reportedly fled a Sulphur Springs jail around 8 a.m., the Associated Press (AP) reported. One of the inmates is set to go on trial for capital murder charges.

A manhunt involving dogs and a helicopter is underway. Local schools have been on lockdown as a precautionary measure.

Hopkins County Sheriff's Office Dispatcher Beth Renfro said a maintenance person noticed a problem with a fence around a recreation yard used by female inmates at the jail in Sulphur Springs, about 75 miles northeast of Dallas, the AP reported.

The two men are believed to be wearing white T-shirts and boxer shorts, Deputy Alvin Jordan told the AP. Their black-and-white jail uniforms were found on rail tracks a short distance east of the jail.

Tucker was being held on $1 million bond in the 2011 death of Bobby Riley of Mahoney. Riley was found strangled in his home, and some music instruments and firearms had been stolen. Jury selection in his murder trial was set to begin June 3. Tucker was also arrested for burglary and driving while intoxicated. There was also another arrest for violating his parole.

King was being held on several charges, including evading arrest, burglary and possession of a controlled substance. According to court documents, he pled guilty last month to the possession charge as a habitual offender and received a sentence of 40 years in prison.