MOSCOW, April 16 (Reuters) - U.S. and British sanctions

imposed on Russian nickel, copper and aluminium will further

increase price volatility and supply uncertainty, Russian

metals-producing giant Norilsk Nickel said on Tuesday.

Liquidity will deteriorate and the cost of financing

industrial supply chains will increase, risking disruption to

the metals market, Nornickel said in a statement.

Nornickel intends to remain a "reliable supplier of

products" and will continue to fulfil all its contractual

obligations, the statement said.