The Associated Press

BOSTON (AP) - Boston's police commissioner says the events surrounding the death of Sen. Edward Kennedy have drawn the largest security force he's ever seen in the city.

Commissioner Ed Davis said there had only been one minor arrest of a protester during the three days of motorcades and memorials to the 77-year-old senator, who died Tuesday of a brain tumor. He had no details on the arrest.

President Barack Obama, and three of the four living presidents, along with dozens of members of Congress attended Kennedy's funeral Saturday.

Davis says the closest event to compare with the security for Kennedy's funeral Saturday was the 2004 Democratic National Convention - and that event was 18 months in planning.

The city has not released an estimate of the cost for security, which included state and federal law enforcement.