A backpack containing explosive devices is found in Elizabeth, N.J., in the evening.
An explosive device detonates as the bomb squad attempts to disarm it. Watch here:
Saturday, Sept. 17
A pipe bomb explodes during a charity race around 9:35 a.m. in Seaside Park, N.J.
The explosion happens shortly before runners are expected to participate in a charity run for Marines and Navy sailors.
No one is wounded.
An explosion occurs around 8:30 p.m. in the Chelsea neighborhood of New York.
Surveillance video shows passersby running to get away from the blast, and investigators say they will comb through that and older footage to try to identify those responsible.
At least 29 people are wounded.
Separately, in Minnesota, authorities say, Dahir Aden stabs nine people in a Minnesota mall at 8 p.m. Aden, a student at St. Cloud State University, is shot and killed by an off-duty officer. The victims sustain wounds that are not life-threatening.