Enrique Ravello, an international election monitor and a Spanish parliamentarian from Catalonia, said voter activity is high at the Crimean referendum.
"I have visited three polling stations. The voting is generally going fine. Very many people have come to vote, the voter turnout is unprecedented," he told reporters.
The referendum has an atmosphere of freedom, he said.
"There is no pressure. The referendum is going in a calm, free and open manner," he said.
At the same time, Ravello said he did not see any Russian military at the Simferopol airport.
"The Spanish media have reported that the Simferopol airport is controlled by the Russian military. However, I didn't see them at the airport, only the Ukrainian police, who held me for three hours," he said.
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