Supply concerns mount after attacks in Mideast

UAE says reserves right to respond

Delay in arrival of products dents industries

Inflation hit 19-year high at 36% in December after currency crisis

Prospect of widely-used cryptocurrencies issued by Big Tech has galvanised efforts

Traders taking gas from stockpiles to supply European buyers and avoid paying high prices

Brent crude fell $0.11, or 0.1%

Minister says diplomacy could fail after one session; West threatening sanctions if Russia invades Ukraine

Dozens killed in worst violence since independence

A third crew member, an aerial observer, was injured and evacuated to a hospital