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Suicide bomber attacks Afghan security offices in Kabul Suicide bomber attacks Afghan security offices in Kabul
(35 minutes later)
A building belonging to Afghanistan's National Directorate of Security (NDS) has been attacked by a suicide bomber in the capital, Kabul, officials have told the BBC.A building belonging to Afghanistan's National Directorate of Security (NDS) has been attacked by a suicide bomber in the capital, Kabul, officials have told the BBC.
A loud explosion was heard, followed by gunfire around the building.A loud explosion was heard, followed by gunfire around the building.
It is close to the interior ministry and other key government offices.It is close to the interior ministry and other key government offices.
It is not yet clear who the attackers are, but the Taliban have over the past two years launched several high profile attacks in Kabul.It is not yet clear who the attackers are, but the Taliban have over the past two years launched several high profile attacks in Kabul.
It is also unclear whether there are any casualties. It is also unclear whether there are any fatalities, although some reports say shop owners and passers-by were injured by the blast.
NDS head targeted
The area involved in central Kabul is heavily barricaded and also houses several Western embassies.The area involved in central Kabul is heavily barricaded and also houses several Western embassies.
The main explosion took place around noon local time (07:30 GMT). A plume of smoke rose from the area, and gunfire and police sirens were then heard.The main explosion took place around noon local time (07:30 GMT). A plume of smoke rose from the area, and gunfire and police sirens were then heard.
The international military coalition in Afghanistan confirmed the explosion and gunfire but had no further details.The international military coalition in Afghanistan confirmed the explosion and gunfire but had no further details.
The attack comes shortly after the return from the US of President Hamid Karzai, who was discussing with President Barack Obama the future of his country after the Nato-led troops withdraw at the end of next year.The attack comes shortly after the return from the US of President Hamid Karzai, who was discussing with President Barack Obama the future of his country after the Nato-led troops withdraw at the end of next year.
Last month, NDS chief Asadullah Khalid was wounded in a Taliban suicide bombing in the Taymeni area of central Kabul.
The Taliban said the attacker had posed as a peace messenger.
Mr Khalid has been in the job since September and has a reputation for being fiercely anti-Taliban.
Militant groups continue to mount regular attacks in Afghanistan, raising questions as to how the Afghan security forces will cope after 2014.