The ticketless fans charged through a security checkpoint before smashing down a glass door, witnesses said, and invading the working room.

They ran around the journalists' workplace looking for access to the Stadium, before police were called.

A total of 87 fans were arrested and are due to be deported from Brazil.

"They stormed the gate and ran into the Stadium," security guard Diego Guilherme de Souza Goncalves told Reuters.

"We stopped them."

Security personnel attempt to control fans after breaking through security and entering the Estádio Maracanã prior to their match against Spain ©AFP/Getty Images

But Gianni Merlo, President of AIPS, has called upon FIFA and Brazilian officials to take the issue of security for the media more seriously. 

"While we accept and believe in the goodwill of the staff of FIFA and the Local Organising Committee it is a clearly a matter of regret that that 'real' security and safety for our colleagues is absent," he said.

"AIPS is aware of concerns raised previously by colleagues concerning thefts from lockers, inadequate catering exacerbated by the petty confiscation of minor items of food and drink and even of a coat hanger which, for the broadcast journalist concerned, counted as professional equipment.

"Every troublesome incident prompts the likelihood of 'copycat' repeat.

"This is no exception.

"We call on FIFA to ensure that the focus of security staff within the FIFA Zone is directed at real security for the sake of all working journalists and members of AIPS."

Chile fans are escorted out of the media centre by security personnel after order had been restored following several minutes of chaos ©AFP/Getty Images

FIFA promised that they were taking the issue seriously. 

Nevertheless, the incident is particularly embarrassing for FIFA and Brazil 2014 because the incident occurred in the Stadium due to host the World Cup final on July 13. 

"A group of individuals without tickets violently forced entry into the stadium, breaking fences and overrunning security," a spokesman said. 

"They were contained by the security and did not make it to the seats.

"The situation was brought under control quickly and at least 85 intruders were detained according to the military police of Rio de Janeiro.

"The organisers of the FIFA World Cup condemn these acts of violence and we will communicate further information and measures to be taken in due course."

Chile won the match 2-0 to knock out defending World Cup champions Spain and secure their own place in the next round. 

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