EU foreign ministers are due to discuss further sanctions against Russia after a Moscow-backed referendum in Crimea backed a split from Ukraine.

The 28-member bloc is considering a visa ban and an asset freeze against a number of Russian officials.

More than 95% of Crimean voters backed joining Russia, local officials said.

Moscow says it will accept the result, but the EU and US say the vote as illegal in Crimea.

Daniel Sandford reports.