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"
More top news
Tony Blair has said Leave campaigners are focusing on immigration "because they've lost comprehensively the debate on the economy".
NBA player Bryce Dejean-Jones has been shot dead after breaking into an apartment he believed to be his girlfriend's, according to police.
Nineteen people have been rescued from the English Channel after the inflatable boat they were in started taking on water.