A man was shot by a Paradise Hills homeowner Tuesday when he began smashing the home's front door with a rock, police said.

An investigation was underway into the incident at a home on S. 58th Street near Mariposa Place, the San Diego Police Department said.

The homeowner said he awoke just before 3 a.m. to a noise in his yard and spotted a man pounding on his door with a rock.

He was pounding with such force that at one point he shattered the home's security door, SDPD said.

The resident grabbed a gun and shouted at the man to leave or he would shoot.

When the man continued to pound on the door, the homeowner opened fire, striking the man in the left shoulder.

SDPD arrived to the scene and located the injured suspect nearby. He was transported to the hospital and was expected to survive his injuries.

Police did not say if the man was suspected of being under the influence of drugs or alcohol at the time.

It is not clear what charges the 25-year-old suspect will be facing.

No other information was available.

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