A tourist boat sank in a broad stretch of Russia's Volga River in the Tatarstan region on Sunday, killing at least one person, emergency services officials said.

Nearly one hundred people remained missing and are feared dead, Reuters reported.

Russian Emergencies Ministry members are searching for missing people.

Tourist boat sinks in Russian River, Hundreds Are Missing
A crowd is seen in front of the Araballa motor ship, which transported survivors from a tourist boat that sank, after its arrival at the port of Kazan July 10, 2011. REUTERS
Tourist boat sinks in Russian River, Hundreds Are Missing
Russian Emergencies Ministry members search for the missing people from a tourist boat that sank on the Volga river in the Tatarstan region July 10, 2011. REUTERS
Tourist boat sinks in Russian River, Hundreds Are Missing
Russian Emergencies Ministry members search for the missing people from a tourist boat that sank on the Volga river in the Tatarstan region July 10, 2011. REUTERS
Tourist boat sinks in Russian River, Hundreds Are Missing
A crowd is seen in front of the Araballa motor ship, which transported survivors from a tourist boat that sank, after its arrival at the port of Kazan July 10, 2011. REUTERS
Tourist boat sinks in Russian River, Hundreds Are Missing
A crowd waits for the Arabella motor ship, which transported the survivors from the Bulgaria tourist boat that sank on the Volga river, at the port of Kazan July 10, 2011. REUTERS
Tourist boat sinks in Russian River, Hundreds Are Missing
Russian Emergencies Ministry members work on the bank of the Volga river as they search for the missing people from the Bulgaria tourist boat that sank in the Tatarstan region July 10, 2011. REUTERS
Tourist boat sinks in Russian River, Hundreds Are Missing
Passengers onboard the Arabella motor ship look out from the deck, after the ship rescued survivors from the Bulgaria tourist boat, at the port of Kazan July 10, 2011. REUTERS
Russia