Another charred barn is in ruins south of Ottawa Tuesday, fueling fears there may be an arsonist targeting farms in the area.

Arson investigators are sifting through the remains of a barn on Marcellus Road in South Dundas Township after it went up in flames at about 2 a.m. Tuesday. No injuries were reported in the incident.

The blaze is the latest addition to 18 fires deemed suspicious in the Winchester area. Police can't say whether any or all of the fires since 2005 are connected.

Anyone with information is asked to call Stormont, Dundas and Glengarry OPP at 613-534-2223.