Both Russia and Ukraine vowed not to strike each other's capitals for three days during the negotiations, as Washington tries to revive US-led talks to end Europe's worst conflict since World War Two. Putin meets US envoys as Russia and Ukraine pause capital strikes Key points and original sources are listed below.

• Both Russia and Ukraine vowed not to strike each other's capitals for three days during the negotiations, as Washington tries to revive US-led talks to end Europe's worst conflict since World War Two.S1

• Putin meets US envoys as Russia and Ukraine pause capital strikesS2

• Both Russia and Ukraine vow not to strike each other's capitals for three days during talks in Moscow and Kyiv.S3