Iraqi worshippers have been told that anyone who captures a female British soldier can keep her as a slave.
A senior aide of radical Shia cleric Muqtada al-Sadr also called on supporters to launch holy war against British troops in Basra.
Sheik Abdul-Sattar al-Bahadli held in his hand what he said were documents and photographs of three Iraqi women being raped at British-run prisons in Iraq.
Al-Bahadli said 250,000 dinars (€300) will be given to anyone who captures a British soldier and 100,000 dinars (€120) for the killing of one.
He offered cash for anyone who captures or kills a member of the Governing Council, a widely unpopular interim administration appointed by the US-led occupation 10 months ago. He also called on government departments in Basra to display pictures of al-Sadr in their offices.
Al-Bahadli, al-Sadr's chief representative in southern Iraq, was speaking to 3,000 supporters at al-Hawi mosque in central Basra. This is the first time that any anti-occupation activist of note has offered financial reward for the killing or capturing of coalition troops.
AP