Suicide bombers have attacked an airport in the eastern Afghan city of Jalalabad.
A military outpost nearby was also targeted by Taliban insurgents.
Witnesses said they heard explosions and saw smoke rising and helicopters flying overhead. The attack lasted for two hours.
Reuters reported that up to ten of the attackers were killed.
The assault in Jalalabad came a day after a suicide car bomber attacked a convoy of Afghan and NATO-led troops on the outskirts of the capital, Kabul.
The Taliban has claimed that 14 suicide bombers were involved in the attacks and that as many as 30 foreign soldiers had been killed.
NATO leaders gather in Lisbon next week, with Afghanistan set to be top of the agenda as European members reassess their commitments amid waning support for the war.
US President Barack Obama will also review his Afghanistan war strategy next month and is committed to starting a gradual troop withdrawal of US troops from July 2011.
Today marks the ninth anniversary of the fall of the Taliban regime in Kabul to US-backed Afghan forces which overthrew the Islamist government for harbouring al-Qaeda before and after the 11 September 2001 attacks on the US.
