24 June 2013 Last updated at 22:46 ET
Militants have attacked security forces near the presidential palace in the centre of the Afghan capital, Kabul.
A BBC correspondent says the assailants are embroiled in clashes with President Hamid Karzai's bodyguards, as well as US personnel from the nearby CIA station.
There have been a series of loud explosions, sending debris flying.
The attack comes only days after Mr Karzai raised objections about US-backed peace talks with the Taliban.
He said the High Peace Council, the government body set up to lead peace efforts, would not take part unless the process was "Afghan-led".
Militants have attacked security forces near the presidential palace in the centre of the Afghan capital, Kabul.
A BBC correspondent says the assailants are embroiled in clashes with President Hamid Karzai's bodyguards, as well as US personnel from the nearby CIA station.
There have been a series of loud explosions, sending debris flying.
The attack comes only days after Mr Karzai raised objections about US-backed peace talks with the Taliban.
He said the High Peace Council, the government body set up to lead peace efforts, would not take part unless the process was "Afghan-led".