An arson fire overnight damaged a vacant house in East Toledo, authorities said.

Fire crews arrived about 11:56 p.m. Sunday and saw flames coming from a house at 1702 Liberty St. They attacked the blaze and had it under control within 20 minutes, according to the Toledo Fire Department.

The fire at the single-story wood frame house was ruled as intentionally set, according to the fire department.

The fire damage estimate was unavailable.

The Lucas County Auditor’s Web site lists Carolyn Gray as the house owner. The house was built in 1907.

First Published August 15, 2011, 11:49 a.m.