MOSCOW (AP) _ A passenger boat sank on the Volga River in Russia Sunday, killing at least one person and leaving 61 missing, officials said.

   Regional emergencies ministry spokesman Marat Rakhmatullin said the Bulgaria sank in the middle of the river in the Tatarstan region, about 450 miles (750 kilometers) east of Moscow..

   He said 173 passengers and crew were onboard when the boat went down. Most of the passengers were picked up by a passing ship.

   The Bulgaria belongs to a local tourism company and went from the town of Bulgar to the regional capital, Kazan.

   The company's website says the double-decker, Czech Republic-made boat is designed for 140 passengers.