KABUL A large explosion was heard in central Kabul several hours after a suicide attack on a building of the national security agency killed dozens of people and wounded hundreds more in the Afghan capital earlier on Tuesday.
Sirens could be heard but it was not immediately clear what had caused the blast or whether there were any casualties.
(Reporting by James Mackenzie; Editing by Paul Tait)
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Updated Date: Apr 19, 2016 20:35 PM