Updated

Sir Paul McCartney said Wednesday that money raised by his next single will be used to help the families of New York firefighters killed and missing in the Sept. 11 attacks on the World Trade Center.

The former Beatle's latest single, "From a Lover to a Friend," is scheduled for worldwide release on Oct. 29. More than 340 firefighters of all ranks were killed or are among the missing in the rubble of the twin towers.

McCartney was in New York on Sept. 11 and said he was "able to witness the tremendous heroism that has come out of the city, including the bravery of the firefighters.