LEWISTON – A fire that destroyed a Spring Street warehouse and office last weekend was deliberately set, police said Friday.

“We consider that an arson,” said police Lt. Michael McGonagle.

Investigators sent evidence from the fire scene to the state crime lab in Augusta for testing, he said.

Two other fires over the same weekend are still under investigation as possibly suspicious and may be linked, McGonagle said.

No arrests have been made in connection with any of the fires.

A week ago, a fire at 3 Wildwood Drive damaged the back of that home, causing an estimated $40,000. The next day, a fire was discovered at the vacant Libbey Mill on Main Street at about 3 p.m. The blaze was quickly brought under control.

Less than three hours later, the former Curran Bean Sprout company buildings on Spring Street were set on fire, police said.

The building burned out of control while threatening to spread to nearby homes.

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