KABUL, Jan 16 (Reuters) - A large blast rocked the centre of the Afghan capital, Kabul, on Wednesday, near heavily barricaded government buildings and Western embassies.
The explosion took place at noon (0730 GMT), Interior Ministry spokesman Sediq Sediqqi told the privately owned Tolo television.
Gunfire and sirens were heard shortly after the blast. It was not immediately clear if there were any casualties.
The explosion came just days after President Hamid Karzai returned from a trip to Washington, where he discussed the country's future with U.S. President Barack Obama once most NATO-led troops withdraw as planned by the end of 2014.