FITCHBURG, Mass. (AP) — Authorities say a juvenile has been arrested in a string of suspicious fires in a Massachusetts city.

The Sentinel & Enterprise reports (http://bit.ly/1ExQuGp ) that the suspect was arrested Friday on suspicion of setting several fires that damaged or destroyed four structures over the last four months in Fitchburg.

There have been six suspicious fires within 100 feet of one another since May.

Authorities haven't released the suspect's name.

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Information from: Sentinel & Enterprise (Fitchburg, Mass.), http://www.sentinelandenterprise.com