Ukraine has enough gas in underground storage to meet its energy needs until December, the chief executive of Ukraine's state gas company Naftogaz said.
Arseny Yatseniuk said the country has 14 billion cubic meters of gas stored.
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Philip Hammond has dismissed concerns that abolishing stamp duty for first-time buyers will push up house prices.
Elsewhere it will be largely sunny, though with gusty winds at times, and a few showers likely in places.
Heavy rain has caused widespread flooding and travel disruption across north west England and North Wales.