Opposing groups of protesters are rallying outside the Crimean parliament.
QHA correspondent has reported about clashes between activists. Activists are beating each other with the flags in their hands, throwing stones and chanting loudly.
There are reports of first shootings.
Meanwhile, Crimean deputies are inside the building, watch the clashes from the windows.
Head of Mejlis of Crimean Tatar people Refat Chubarov and head of ‘Russian Unity’ party Sergey Aksyonov call on protesters to stay calm and make live corridor to let the police pass through people.
Thousands of Crimean Tatars rally supporting the new leadership in Kyiv and stand against possible separation of Crimea from Ukraine.
Tension came a few days after Konstantinov said Crimea could part from Ukraine if the instability in the country continues, while he was holding talks in Russia.
A group of pro-Russia demonstrators gathered in front of the Parliament on Tuesday, demanding Ukraine's government be declared illegal and holding referendum on Crimea's status.