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PORTLAND -- Portland police said an improvised incendiary device was set off outside the World Trade Center at 121 SW Salmon and they're investigating a possible link to the Occupy Portland camp.

Lt. Robert King said a Molotov cocktail caused minor damage Tuesday night on an external stairwell. The building that was targeted is located one block east of the two parks where Occupy Portland demonstrators have been camped since Oct. 6.

King said there's preliminary information available that indicates a connection to Occupy Portland.

He said that police received unconfirmed reports on Oct. 31 that the gasoline filled bottles with a cloth wick were being made within the Occupy Portland encampments at Lownsdale and Chapman Square parks.

He declined to say whether that information linked the incident to specific people.

The incident occurred at the World Trade Center, which houses the headquarters for Oregon's largest electric utility, state offices, a number of law firms and the office of U.S. Sen. Jeff Merkley.

Anyone with information that may help investigators was asked to call detective Joe Luiz at (503) 823-3408.

Crime Stoppers offers a cash reward of up to $1,000 for information leading to an arrest. Tips can be anonymous. Call (503) 823-HELP (4357), leave a tip online at www.crimestoppersoforegon.com, or text CRIMES (274637) and in the subject line put 823HELP, followed by your tip.

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