has come forward with this - | unprecedented raft of sanctionsi along with other western allies, there's a fear that of course russia i is no longer a reliable supplier. of gas, of oil as well. earlier, a threat by moscow to cut off gas supplies to western europe sent the prices of oil and gas soaring. the russian deputy prime minister warned of "catastrophic consequences for the global market" with oil driven to more than double to $300 a barrel. well, this was the price of brent crude a short while ago after the benchmark hit its highest level for 13 years last week. that's translated to real world effects at the petrol pump. the uk has already been hit by the steepest weekly hike in fuel prices in at least 18 years. the average price of a litre of petrol at uk forecourts rose to 153p on monday, that's $2, with diesel prices almost 159p. let's get more from samira hussain,