Boston police investigate 2 backpacks, clear area

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The family of 2013 Boston Marathon bombing victim Martin Richard, from left, mother Denise, brother Henry, and father Bill Richard walk onto Boylston street for the raising of the flag during a tribute on the one year anniversary of the Boston Marathon bombings, Tuesday, April 15, 2014 in Boston. (AP Photo/Charles Krupa)

BOSTON (AP) — Police say they've taken a man into custody in connection with two unattended backpacks found at the Boston Marathon finish line.

Police spokesman Dave Estrada says the backpacks were discovered Tuesday evening, a year after two bombs in backpacks exploded at the end of the marathon and killed three people.

The bomb squad is checking the backpacks found Tuesday. Police have cleared the area. Trains are bypassing the nearby Copley Square station. The police department has tweeted asking people to avoid the area.

Survivors, first responders and relatives of those killed in last year's Boston Marathon bombing marked the anniversary Tuesday with tributes. Former Mayor Thomas Menino (meh-NEE'-noh) spoke at the nearby Hynes Convention Center.