Boston plans to mark the traumatic week since the marathon bombings with a mournful silence as the city returns to its bustling commute.
Massachusetts Governor Deval Patrick has asked residents to observe a moment of silence at 2.50pm local time, the time the first of two bombs exploded near the finish line. Bells will ring out across the city and state afterwards.
On Friday, authorities made the unprecedented request that residents stay at home during the manhunt for 19-year-old suspect Dzhokhar Tsarnaev.
He was later discovered hiding in a boat covered by a tarpaulin in suburban Watertown.
His 26-year-old brother, Tamerlan Tsarnaev, was killed during a getaway attempt.
The motive of the two ethnic Chechen brothers from southern Russia remains unclear.
The bombings killed three people and injured more than 180.