US helicopter gunships have attacked Taliban military positions near Kabul.
Reports say artillery and heavy machine gunfire has reverberated from Taliban posts in the hills around the Afghan capital.
Jets have also dropped bombs in Kabul, on the frontline to the north and in the Taliban's southern stronghold of Kandahar, the Afghan Islamic Press reports.
The agency, which is aligned with the Taliban, reported helicopter assaults on Taliban installations and residential areas north of Kabul. Two loud explosions were heard on the outskirts of the city around 5am.
The Taliban-controlled Bakhtar News Agency claimed bombs killed 10 people and injured 15 others in a village south of Mazar-e-Sharif.
Five people died and seven were wounded in a raid near Kandahar, it said.
The reports could not be independently confirmed. The Pentagon has repeatedly dismissed the Taliban's claims of widespread civilian casualties as lies.
Yesterday, an attack by anti-Taliban forces outside Mazar-e-Sharif was reported to be faltering only hours after it was launched, raising questions about the ability of the opposition to exploit US airstrikes without the assistance of American ground troops.
US military planners are concerned that opposition forces, who have promised a major offensive, will get bogged down with the onset of winter in the weeks ahead.
Bad weather will soon make roads impassable, obstructing the resupply of frontline troops.