Explosion at Port Authority Bus Terminal in New York City

Police respond to a pipe-bomb attack at the Port Authority Bus Terminal in Manhattan on Dec. 11.

(Carolyn Cole / Los Angeles Times)

Dec. 11, 2017 7:45 AM PT

An explosive device exploded near Times Square during the morning rush hour Monday.

Passersby look on as authorities in New York work at the scene of an explosion at the Port Authority Bus Terminal on Dec. 11.

(Carolyn Cole / Los Angeles Times)

People wait outside the Port Authority Bus Terminal in Manhattan as police work at the scene of a pipe-bomb attack on Dec. 11.

(Carolyn Cole / Los Angeles Times)

Police and fire officials respond to the scene of pipe-bomb attack at Port Authority Bus Terminal in Manhattan on Dec. 11.

(Carolyn Cole / Los Angeles Times)

Police stand guard near the scene on an explosion at the Port Authority Bus Terminal in Manhattan on Dec. 11.

(Carolyn Cole / Los Angeles Times)

Police officers confer near the scene of an explosion at the Port Authority Bus Terminal in Manhattan on Dec. 11.

(Carolyn Cole / Los Angeles Times)