WASHINGTON, April 25 -- The US central bank is widely expected to keep interest rates unchanged at its policy meeting next week, as energy prices stay high and supply chains snarled due to war in the Middle East.

The Federal Reserve's two-day meeting, starting Tuesday, could be chairman Jerome Powell's last at the helm of the independent institution.

But it takes place against a tricky backdrop. Powell's successor has faced a bumpy road to confirmation, while policymakers battle competing pressures as steeper fuel prices drive inflation and job market worries linger.

Fed officials are set to keep rates steady at a range between 3.50 per cent and 3.75 per cent, extending their pause since the start of the year.

"We still have a very hi...