Five British Muslims have reportedly been killed fighting for the Taliban.
Three of the casualties of the British-based Al-Muhajiroun group have been identified. The five were killed during fighting for the city of Mazar-e-Sharif, a spokesman for the Taliban said.
"Five of our British Muslim volunteers were martyred in Mazar-e-Sharif," Mr Hassan Butt said.
They include Abdul Saleem (25) from East London; Zulfikar Ahmed (28) from Leicester; and Abu Waheed (26) from Crawley.
He refused to identify the other two.
Al-Muhajiroun lost three other Britons and two American Muslim members last month during US-led bombing on Kabul.
The Northern Alliance seized Mazar-e-Sharif last Friday, starting its string of rapid victories that led to the fall of Kabul this week.