, MOSCOW, Nov 28 – Rescue workers picked on Saturday through the twisted wreckage of a Russian passenger train that derailed overnight killing at least 25 people, hunting for more survivors of what may have been an attack.
Russian television showed footage of the mangled metal of four overturned wagons of the Nevski Express, which officials said came off the tracks Friday evening in the Novgorod region as it travelled between the capital Moscow and Saint Petersburg.
"Twenty-five people were killed, between four and seven could still be under the wreckage, 19 are missing," Health Minister Tatyana Golikova was quoted as saying by the Interfax news agency.
Ninety-five people were injured and hospitalised, she added.
A unnamed security official was quoted by the Interfax as saying that a one metre-diametre (three-foot wide) crater was found near the scene of the disaster.
"Witnesses say they heard a loud bang before the accident. This could be proof of an attack," the source said.
The crater could have been caused by an "explosion from a device placed underneath one of the wagons," Ria-Novosti quoted another security official as saying.
A railways official also told Itar-Tass that "an attack is one of the possibilities" being looked at by the police.
"That version must be carefully studied by law enforcement authorities," Alexander Pirkov, an advisor to the president of the Russian railway company, was quoted as saying by Interfax.
In August 2007, a bomb on the same line derailed a train, injuring 60 passengers, with Chechen separatist or ultra-nationalist groups suspected.
Four wagons of the 14-carriage train, carrying around 660 passengers and nearly two dozen staff, derailed at 9:34 pm (1834 GMT), according to the emergencies ministry.
Emergency services rushed to the scene of the crash, and by 0100 GMT all the injured had been evacuated to local hospitals, Russia media reported.
Several medical teams and a mobile hospital were also dispatched to the area.
Rescue work continued through the night to free people believed trapped under the wreckage, said Itar-Tass.
"Two wagons were completely overturned … Several people were completely crushed under the metal. I heard screams, moaning," said, Andrei Abramenko, a police officer who happened to be travelling on the train, on Vesti 24 television.
The station showed footage of rescuers working among the wreckage under powerful searchlights.
Russian President Dmitry Medvedev ordered the head of the FSB domestic security service, Alexander Bortnikov, and Prosecutor General Yuri Chaika to lead the investigation into the causes of the derailment, the Kremlin said in a statement.
The country\\\\\\\’s anti-terrorism committee dispatched units to the area to help with the rescue effort and the investigation, Interfax reported.
Emergency Situations Minister Sergei Shoigu held a crisis meeting in Moscow with Interior Minister Rashid Nurgaliyev and Golikova, and was expected to visit the scene of derailment Saturday morning, the news agency reported.
In Washington, the White House said it was "deeply saddened by the terrible loss of life and injuries" from the railway accident, spokesman Robert Gibbs said in a statement.