Ukraine's Acting Foreign Minister says the country will not give up on Crimea.

Reuters report Andriy Deshchytsia told a press conference in Kiev: "Crimea is and will be Ukrainian territory and we will not give up Crimea to anyone.”

Meanwhile, international observers have been refused entry to Crimea for a third day running. Warning shots were fired as a convoy approached the peninsula.

The Foreign Minister added that his government were looking for a diplomatic solution to the crisis: "We are putting all our efforts into solving this matter through diplomacy - we have already had too many victims."
Crimea’s parliament is holding a referendum in a week, to decide whether to become part of Russia.

Sky's Andrew Wilson says Ukraine's Foreign Minister wants Russia to allow international observers into the region.

Meanwhile, international observers have been refused entry to Crimea for a third day running. Warning shots were fired as a convoy approached the peninsula.