A pro-Russian leader said yesterday that the first team of special monitors detained in the eastern Ukrainian town of Donetsk was likely to be released soon.
The OSCE now claims a second group of its observers been held captive in nearby Severodonetsk, after losing contact with them yesterday evening.
The organisation sent the so-called special monitors to observe compliance with an international accord for de-escalating a crisis in the east of the country, where pro-Russian separatists have seized control of strategic points in several towns.
There are currently 248 international members of the OSCE's special monitoring mission in Ukraine, with another 23 due to be deployed on Friday and a target of 300 by the end of June, an OSCE spokesman said.
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A rollercoaster has reportedly come off the rails at a theme park in Scotland.
"I saw a lot of smoke come out from the tail-end of the aircraft. I wondered if it was normal, whether it was just exhaust fumes."
The House of Commons Petitions Committee has said they will keep an eye on the petition and are concerned about fraudulent signatures.