KARACHI - Two bomb blasts near a procession of Shi'ite Muslims killed at least three people and wounded more than a dozen in the Pakistani city of Karachi on Wednesday, police said.In the first attack, a suicide bomber on a motorcycle rammed into a rickshaw driver. Both were killed and seven people were wounded, police said.A second blast killed one person and wounded 10, including journalists who appeared at the scene to cover the first explosion, local television stations reported.