Talks over a gas pricing dispute between Ukraine and Russia have ended without an agreement, according to a source close to the negotiations.
The Ukrainian government has a deadline of 10.00 GMT tomorrow to pay its $1.95 billion debt.
It is possible that the Kremlin could now opt to cut off the gas supply to Ukraine, potentially causing difficulty for other European countries that receive their gas via Ukraine.
More top news
Students at Marysville-Pilchuck High School in Washington are overcome with emotion at hearing their classmate was shot dead.
Northwestern Scotland and Northern Ireland face a rain-hit weekend, while the rest of Britain enjoys some bright but generally dry weather.
All this week while reporting, I have been taking photos. They offer powerful portraits of the lives affected by the desperate outbreak.