Security forces have surrounded the area around an airfield at a US base in the eastern Afghan city of Jalalabad following explosions and gunfire.
The US-led NATO coalition confirmed "multiple explosions" in a statement.
We can confirm there have been multiple explosions in the vicinity of the Jalalabad airfield. Currently, ISAF officials are on the scene gathering facts.
More top news
Freezing, frosty and icy again tonight as temperatures fall.
Fashion giant Michael Kors Holdings announces that it is phasing out real fur over the next year.
The little boy cried for help but began making the two-mile journey home on his own when there was no response.