Oil prices have soared again as the Ukraine crisis – and planned sanctions against Russia – intensified.

Brent crude surged past $105 a barrel in overnight trading on Monday, nearing the peak seen last week when it hit its highest level since 2014.

Russia represents 10% of global oil supply and it is feared measures to isolate some of its banks from a global interbank network could cause disruption.

Vladimir Putin’s move to put the Kremlin’s nuclear deterrent on high alert has only added to the anxiety.

Prices of other commodities exported from Russia also surged, with aluminium hitting a record high on Monday.

Russia is already counting the financial cost of the conflict with the rouble hitting a fresh all-time low against the US dollar after details of latest sanctions emerged, and oil giant BP as well as Norway’s Equinor announcing their exits from the country.

Elsewhere, financial markets in Asia had a mixed start to trading for the week but stocks in Europe with greater exposure to the conflict were looking set for a volatile start following a rollercoaster ride in recent days.

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Oil prices had climbed sharply last week at the start of the conflict to more than $105 before slipping back below the $100 level by the end of Friday but bouncing higher again on Monday.

The increase threatens to add to the cost of living squeeze facing UK consumers who are already seeing record costs at fuel pumps.

Daniel Hynes, commodity strategist at ANZ, said: “Moves by the US and Europe to remove certain Russian banks from the SWIFT system have raised fears of a disruption to supply of some sort in the near term.

“The risk to supply is the greatest we’ve seen for some time and it comes in a tight market.”

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