ITV News Europe Editor James Mates is in Kiev:
Polish FM @sikorskiradek confirms to me threat of martial law was real "To my knowledge interior ministry troops were being readied"
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Devon Staples had been drinking during Independence Day celebrations when he placed a fireworks on the top of his head and lit the fuse.
World Number 4 Murray has won their previous five encounters, but Karlovic tops the tournament's aces leaderboard so far.
The Britain's Got Talent judge was accused of singing the national anthem in an American accent and getting the words wrong.