Missing Russian scientist reappears after 18 months

A Russian nuclear scientist who disappeared more than 18 months ago has reappeared.

Sergei Podoinitsyn, who was working on weapons-grade plutonium at a Siberian nuclear facility, disappeared in October 2003 with a large sum of money.

The prosecutor's office in the Krasnoyarsk region said it had opened a criminal case for kidnapping after he turned up in Zheleznogorsk.