GETTY Areas of Sweden have been identified as 'no go' zones by police

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The country has seen a huge surge in crime since the start of the migrants crisis in Europe with a rise in sex assaults, drug dealing and children carrying weapons. In the secret report by Sweden's National Criminal Investigation Service, attacks on officers are detailed, including police cars being stoned by masked groups. Some 52 areas have been put on a '"blacklist" which are then divided into three categories from "risk areas" to "seriously vulnerable". And the report revealed Sweden’s Capital Stockholm had over 20 no-go areas where over 75,000 people live. The report comes after law enforcement chiefs in the country called for extra officers, admitting they cannot cope with the levels of crime being committed.

GETTY Another 100,000 migrants are expected to arrive in Sweden this year

We have to go to work against unrest in the asylum centres which places a much greater demand than might appear outwardly National Police Commissioner Dan Eliasson

National Police Commissioner Dan Eliasson said he needed a further 4,100 officers and specialist staff to deal with the surge in incidents since migrants entered the nation in their thousands. He said: “We have to go to work against unrest in the asylum centres which places a much greater demand than might appear outwardly. "In some places in Sweden this eats significant resources out of the police's capability. "Moreover, from several sources there are reports that staff are poorly prepared to handle violence, threats and conflicts - while there are too few security guards." Last month, Swedish police had to run for safety after being surrounded by an angry mob of migrants when they went to rescue a 10-year-old boy, who had allegedly been raped and 22-year-old Alexandra Mezher was stabbed to death by a Somali boy aged 15.

Masked man attacks a school in Sweden Thu, October 22, 2015 A masked man welding a sword has attacked Kronan school in Trollhattan, Sweden. Play slideshow REUTERS 1 of 9 Police cordon off an area after a masked man attacked people with a sword at a school in Trollhattan, western Sweden

GETTY Alexandra Mezher was murdered while working at a migrant centre in Sweden

The number of reported incidents at Swedish asylum centres has increased drastically from 148 in 2014 to 322 in 2015. The report said criminals are openly brewing the law and that in the lawless areas nobody will give statements to police. It also claimed the 52 areas commonly had high immigration, low employment rates and bad living conditions. In Hallunda and Norsborg the report said children aged 12 carry weapons for older criminals and 70 cars and buildings were set on fire in an arson spate last year. The area has become so bad two cars are sent to every call out. In Ronna, Geneta and Lina people are "terrified" of speaking to the police, the report said.

Criminals are refusing to pay restaurant owners after eating, take drugs openly, sell smuggled goods and launch attacks on police with rocks. The report said in Husby drugs are sold openly and people are scared to enter the town after 5pm and businesses are leaving the area. In May 2015 a seven-year-old and a 56-year-old were shot in a gangland showdown in the town centre. Sweden’s migrant services said they were expecting more than 100,000 people to seek asylum in the country this year. Anders Danielsson, of the migration services, said: “It is very difficult to make any assessment at all. “The only thing we know is that the pressure on Europe is going to be equal, or even greater in 2016 than it was in 2015.”