I am at Simferopol airport where green uniformed professional soldiers with no insignia took over during the night and are being backed up by local volunteers.

The Ukrainian government says these are not Ukrainian soldiers and they are definitely not local people wearing uniform. The Ukrainian government is calling this an invasion. An ex-British paratrooper working with one of the TV crews says they are professional, carrying their guns the way they should be, with safety catches on.

I have tried to talk to them but they are not saying anything. I have tried to ask for a commander or spokesman but nobody will talk to the Press. The airport is operating normally.