Photo courtesy Wilmington Fire Department

Fire damaged a vacant house in Wilmington.

Crews arrived at 31 East 23rd Street Sunday afternoon on July 29, 2018, to find flames on the porch of the two-story home.

The fire spread to the first-floor living area by the time it was brought under control about 20 minutes later.

The city Fire Marshal's office is looking into what touched off the blaze.