Nato forces mistakenly supplied food, water and arms to Taliban forces in southern Afghanistan, officials today admitted.

Containers destined for local police forces were dropped from a helicopter into a Taliban-controlled area of Zabul province.

The coalition helicopter had intended to deliver pallets of supplies to a police checkpoint in Ghazni, a remote section of Zabul late last month.

By mistake they were dropped some distance from the checkpoint where it was taken by the Taliban, the Internal Security Affairs Commission of the Wolesi Jirga — the Afghan parliament's lower house — was told.

Hamidullah Tukhi, a local politician from Zabul, told the parliamentary commission that the consignment had been taken by a local Taliban commander.

A Nato spokesman said the pallets were carrying rocket propelled grenades, ammunition, water and food.

Afghan politicians have said they do not believe the drop was an accident.