Police and security officers cordon off the area of a deadly bombing, in Lahore, Pakistan, Monday, Feb. 13, 2017.

Pakistani police say a large bomb has struck a protest rally in the eastern city of Lahore, killing and wounding many people.

A local police official said the blast occurred when a man on a motorcycle rammed into the crowd of hundreds of pharmacists, who were protesting new amendments to a law governing drug sales.

(AP Photo/K.M. Chaudhry)