On Sunday, a house at 66 Wilkes St. caught fire. It was the sixth fire in a month including four in one night.

Both Battle Creek Fire Marshal Quincy Jones and Police Detective Sgt. Todd Elliott said investigators have not found a common link in the fires except that all were vacant at the time of the fires.

The Wilkes Street fire was reported at 7:30 p.m. Sunday. Firefighters reported heavy smoke and fire on the outside of the rear of the two-story wood-frame home. There was smoke throughout the building.

Firefighters were able to extinguish the fire before it spread to the inside of the house. They searched the house to ensure no one was inside and reported no injuries.

As with the other fires, the cause was considered suspicious. Jones was at the scene until midnight looking for evidence but said the fire remains under investigation.

Firefighters said no one was living inside and all utilities were off. The house, built in 1925 was valued by the city at $5,005.

The Wilkes Street fire follows one on Sept. 28 at 447 Hubbard St. and four fires in vacant homes on Sept. 10.

None of the houses have the same owner, and Elliott said again Monday that the search is continuing for evidence linking the six fires and pointing to possible suspects.

The vacant house fires are:

• 7:30 p.m. on Sunday at 66 Wilkes St. with fire at the outside of the rear of the house.

• 8:04 a.m. Sept. 28 at 447 Hubbard St. where fire was found on the outside of the single story house.

• 4:20 a.m. Sept. 10 at 91 W. Fountain St. where firefighters found heavy flames at the rear of the home and the structure was heavily damaged including a partial roof collapse.

• 4:16 a.m. Sept. 10 at 222 Cherry St., where fire was found in the rear of the first floor of the two-story house.

• 2:01 a.m. Sept. 10 at 60 Oaklawn Ave., where firefighters found fire on the first floor of the two-story house.

• 1:54 a.m. Sept. 10 at 17 N. Wabash Ave., where firefighters found a fire that they believed started at the side of the house.

A Michigan State Police trooper and his dog have helped searched most of the sites looking for evidence of accelerants that might have been used to set the fires. Investigators have not disclosed what they found.

Anyone with information about any of the fires is asked to call the Battle Creek Police Department, 269-966-3322; the Battle Creek Fire Department at 269-966-3319; or Silent Observer at 269-964-3888.

Contact Trace Christenson at 269-966-0685 or tchrist@battlecreekenquirer.com. Follow him on Twitter@TSChristenson