Grenades used in Quran clash

Protesters angry over the burning of the Quran by American troops threw grenades at a US base in northern Afghanistan and clashed with police and troops in a day of violence that left seven international soldiers injured and two Afghans dead.

The attacks were the latest in six days of violence across the country by Afghans furious at the way some Qurans at an American base outside of Kabul were disposed of in a burn pit.

The incident has swiftly spiralled out of control, leaving dozens of people dead, including four US troops killed by their Afghan counterparts, in a sign of the tenuous nature of the relationship between Afghanistan and the US.

Afghan authorities have launched a manhunt for a driver they suspect in the killing of two US military advisers who were shot dead at an Afghan ministry on Saturday.