The Austin Police Department is investigating a Sunday morning shooting death of a teenager in South Austin.

Police said the shooting happened at about 12:44 a.m. in the 1500 block of Canon Yeoman’s Trail.

The victim, 17-year-old Mark Brandon Dominguez, and his two brothers had left their home in the area to investigate noises that they believed to be someone breaking into a car.

While outside, Dominguez encountered the suspect and was shot.

Police responded to the area and found Dominguez on the 11100 block of Franklin’s Tale Loop, just around the corner from where they believe the shooting happened.

Dominguez was transported to University Medical Center Brackenridge before dying as a result of his wound.

During the investigation, police found two armed juveniles matching the suspects’ descriptions in a taxi cab nearby. Both were arrested and transported to Gardner Betts Juvenile Justice Center.

One of the juveniles has been charged with murder, a first degree felony, and unlawful carrying of a weapon. The other suspect has been charged with unlawful carrying of a weapon.

This is Austin’s third murder of 2012.