Karachi blast brings city to a standstill
4 March 2013 Last updated at 18:22 GMT
The Pakistani city of Karachi is in mourning after a powerful bomb ripped through a mainly Shia Muslim area, killing at least 45 people.
Schools and businesses are closed after a strike was called to protest against the attack in Abbas Town.
Sunday night's explosion destroyed several buildings and set others on fire, sending a huge column of smoke into the sky and causing a power cut in part of the city.
Mike Wooldridge reports.