**Russia is holding a day of mourning for the 112 people killed in a nightclub fire in the city of Perm.**Some TV programmes have been cancelled, flags are flying at half-mast and memorial services are being held across the country.
More than 140 people were injured, some seriously, when fireworks triggered the blaze in the early hours of Saturday.
Four people, including the club’s owner, are in police custody while an investigation continues.
In Perm, residents have laid hundreds of red carnations outside the Lame Horse nightclub, which is surrounded by candles and photos of victims.
Many of those who died were trapped in the crush as more than 200 people fought to escape the smoke and flames through one narrow exit.
Burns units
Amateur footage taken inside the club at the time showed flames taking hold in wicker decorations that were covering the ceiling.
The most seriously injured victims have been airlifted to specialist burns units at hospitals in Moscow, St Petersburg and other cities.
Doctors say many have more than 50% burns and some are being kept alive by artificial respirators.
On Sunday, a memorial service was held at the main church in Perm, some 1,400km (870 miles) east of the capital Moscow.
The first funerals were also held, amid bitter recriminations from relatives towards those they held responsible for the tragedy.
“My son died - he was 27 and leaves behind a wife and a one-and-a-half-year-old son,” said the mother of Roman Telyegin.
“His son is searching for his papa.”
At the funeral of 26-year-old barman Timur Perfilyev, a friend, Andrei, told how the employee had got out of the club but went back to help others and perished.
“They found him when they were searching the ruins,” he said, blaming “corrupt authorities” for poor fire safety rules at the club.
Sergei Prokofiev, an 18-year-old student and stepbrother of one of the victims said: “It was monstrous, young people died there, the future of Russia.”
The club’s owner, two managers and the man who organised the firework show have been remanded in custody on suspicion of manslaughter and breaching fire regulations.
Correspondents say fire inspections in Russia are routinely used as a way to demand bribes rather than enforce safety rules.
“The authorities are directly to blame, along with corruption and the criminality of firemen,” said Perm resident Leonid Ryabov, 51, who was buying flowers to lay near the club.
Russian President Dmitry Medvedev has demanded that those found responsible be punished with the full force of the law.
The Russian emergencies minister, Sergei Shoigu, has called for spot checks on all Russia’s nightclubs to be completed before the end of the year.