British bank Barclays Plc is to raise 7.3 billion pounds ($12.1 billion) from investors from Qatar and Abu Dhabi and others to allow it to avoid taking government rescue cash, it said on last Friday.

Britain's second biggest bank said it is raising up to 3.5 billion pounds from Sheikh Mansour Bin Zayed Al Nahyan, a member of Abu Dhabi's royal family. That could give him a 16.3 percent stake in the bank.

It is raising up to 2 billion pounds from Qatar Holding and 300 million from Challenger, an investment vehicle of a member of Qatar's royal family.

That could leave Qatar Holding with a 12.7 percent stake and Challenger with 2.8 percent.

Barclays shares initially jumped after the news as investors welcomed the bank's ability to raise cash in tough markets and an adequate trading update, but later eased back. At 1.30pm Dubai time they were unchanged at just over 205 pence after touching 228p.