A 24-year-old Texas man is in critical condition Thursday after he was stabbed by his girlfriend's ex-boyfriend, who was hiding in a closet at her apartment, WOAI reported.

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Anthony Escobedo, 24, was taken to a San Antonio hospital with a collapsed lung, the television station reported.

The incident occurred in San Antonio just after 2 a.m., police said. The couple had just gone to bed when the ex-boyfriend jumped out of a closet and stabbed Escobedo several times in the back with a large knife, WOAI reported.

The woman pulled the assailant off Escobedo, police said.

The ex-boyfriend immediately fled following the stabbing, KSAT reported. There was no signs of forced entry and police know the identity of the ex-boyfriend, police said. The woman told police she had no idea how the man got into her apartment, WOAI reported.

Police are searching for the suspect, the television station reported.