An Austin man is in custody after allegedly slashing a roommate with a knife during an altercation early Monday.

The 23-year-old has not been formally charged, though he will likely face felony second-degree assault with a dangerous weapon.

According to a police report, the incident occurred at around 3:15 a.m. at 1220 Second Drive NE. The 23-year-old allegedly started flirting with his 21-year-old roommate’s girlfriend, who also lived in the apartment, which angered the 21-year-old.

When he confronted the suspect, the 23-year-old male allegedly went to the kitchen and grabbed a knife.

The report states that all three were drinking. The victim’s girlfriend, who called in the incident, was cited for minor consumption.

The 21-year-old suffered a deep cut to his palm, as well as to his lip, leaving blood stains throughout the kitchen and the front of the apartment. He was taken to Austin Medical Center but later released.