Pakistan: 4-day death toll rises to 51 in Karachi

KARACHI, Pakistan — Parts of Pakistan's largest city shut down Wednesday after an attack on a scrapyard pushed to 51 the number of people killed in four days — a spasm of politically motivated violence in a country already wracked by Islamist militancy.
Some shops were set on fire in an outlying neighborhood of Karachi, where police tried to calm gathering crowds, footage broadcast on Pakistani TV stations showed.
The violence in Karachi comes as Pakistan is engaged in talks with the US on the future of their shaky alliance against the Taliban and al-Qaida. US officials in Washington are expected to discuss on Wednesday a long-term military and security assistance pact with a visiting Pakistani delegation.