Firefighters in the infamous southern Swedish city of Malmö were attacked by locals last week while a fire was raging, thus being forced to let the building burn to the ground.

The started in the suburb of Kroksbäck after two parked cars were set ablaze after sundown. Firefighters assisted by local police units responded shortly thereafter; meanwhile another fire had broken out in a nearby building on Sörbäcksgatan Street.

As the firefighters attempted to control the second blaze, they and their vehicles were attacked by locals with glass bottles and other objects, according to a Swedish police report.

"During the extinguishing of the fire, glass bottles were thrown against the personnel and vehicles of the rescue service. The rescue service was therefore forced to interrupt its work, with total destruction to the building as a consequence.

Police arriving at the scene were also attacked with at least one glass bottle. There is currently no information about the extent of the damage to the emergency services or police personnel and vehicles.

It is not known at this time if there was any connection between the two fires."

Both fires, however, are suspected to be the results of arson.

These sorts of attacks are far from rare in certain Swedish cities, the most infamous of these being Malmö and its so-called "no-go zones." These no-go zones are heavily populated by people of immigrant backgrounds. Swedish authorities have advised that they are to be avoided and even police refrain from entering them.

Though seemingly an important subject, authorities, and the Swedish government especially, avoid talking about the no-go zones due to the perceived political sensibility of the subject matter.

Nevertheless, in some of the more notorious heavily migrant-populated suburbs like Husby, Tensta, and Rinkeby in the Swedish capital, Stockholm, emergency service members such as police, firefighters and ambulance workers have been attacked on multiple occasions.

The situation has gotten so bad that ambulance unions have even put forth requests for bullet proof vests to be given to paramedics operating in the problematic areas.

Many such attacks have been captured on surveillance and other cameras and are widely available to be seen online. Footage from 2015 shows police officers being attacked while others were shouting "you are not in charge here" to them.

The number of no-go zones has risen from 15 to 23 in the past two years alone, according to leaked documents held back from release by the Swedish police's top brass.

The classified report, which was produced by the intelligence department of Sweden's National Operations Department (NOA) and has been seen by Dagens Nyheter, showedthat law enforcement has been helpless to halt the spread of criminality.

Police forces "find it difficult to carry out [their] mission" in neighbourhoods classed as "vulnerable", according to NOA's research, for a number of reasons which include "an unwillingness of the population to participate in legal proceedings".

Local media reported that the Police Board intended to publish the updated list of vulnerable areas last month, but national police chief Dan Eliasson prevented its release.

"This information is very sensitive," a source said of the report.

"Eliasson is making every effort to get the results turned around, but they have been going in the wrong direction."

"There is an atmosphere of crisis and management recognizes the need to present a credible plan of action," the source told Dagens Nyheter.

In February, U.S. President Donald Trump was scorned by the establishment and media in Sweden after he told a rally that the Nordic nation is "having problems like they never thought possible" as a result of mass immigration.

But just hours after the president's speech in Florida, riots in which cars were set ablaze and shops were looted broke out in the notorious "vulnerable" zone of Rinkeby.

In April, Breitbart London reported that dozens of homes in the Stockholm suburb were no longer receiving postal deliveries after the company responsible judged the neighborhood, where a majority of residents were of an immigrant background, to be too dangerous to send their staff.