Turkey arrests Russian at nuclear plant in Islamic State probe, sources say

ISTANBUL (Reuters) - Turkish counter-terrorism police investigating the militant group Islamic State have detained a Russian citizen working at a nuclear power plant under construction on Turkey's southern coast, security sources said on Tuesday.

The suspect was caught working under a fake identity at the $20-billion Akkuyu nuclear plant, which is being built by Russian conglomerate Rosatom in the Mediterranean province of Mersin, the sources added.

Police in Mersin said that a Turkish court formally arrested the foreign national. Its statement did not specify the suspect's nationality or give further details on the operation.

Last week, Interior Minister Ali Yerlikaya said Turkey had detained 147 people suspected of having ties to Islamic State in operations across 33 provinces.

Last month, one Turkish citizen was killed by two Islamic State gunmen at the Italian Santa Maria Catholic Church in Istanbul. Turkish police detained two people suspected of carrying out the attack.

(Reporting by Daren Butler; Editing by Jonathan Spicer and Andrew Heavens)