Brussels police detain three over 'New Year terror plot' Published duration 31 December 2015

media caption Gavin Lee reports that extreme security measure are becoming the 'new normal'

Three people detained on Thursday in connection with an alleged plot to target Brussels on New Year's Eve are to be held for a further 24 hours, Belgian prosecutors say.

Another three people who were also detained during the raids in and around the Belgian capital have been released.

Two other terror suspects were arrested earlier this week, and Brussels' mayor cancelled New Year festivities.

French authorities have deployed more than 100,000 police to ensure security.

Paris saw its biggest public gathering since the deadly attacks there last month, but the city's usual firework display did not take place.

Belgian authorities said the apparent plots to target New Year celebrations in Brussels are not related to the suspected network behind the Paris attacks.

The mayor of Brussels, Yvan Mayeur, said the decision to cancel the city's New Year celebrations was based on intelligence suggesting they could be targeted.

The two men seized in Brussels on Sunday morning , named as 30-year-old Said Saouti and 27-year-old Mohammed Karay, both Belgian nationals, can be held for a month, a judge ruled on Thursday.

Both are members of a motorcycle club called the Kamikaze Riders. Some members have links to Islamist groups and to Belgians who have travelled to Syria to fight with so-called Islamic State, Belgian media report.

It was not clear whether the six taken in for questioning on Thursday morning were also connected to the motorcycle club.

Police seized material during Thursday's raids including computers, phones and materials for playing airsoft - a military simulation game in which players fire replica weapons loaded with plastic pellets.

image copyright Reuters image caption Brussels' New Year celebrations have been cancelled

image copyright AFP image caption There have been further raids connected to the 13 November Paris attacks in Brussels

Separately, Belgian police arrested a 10th suspect over the 13 November attacks in Paris, in which 130 people were killed.

The Belgian national, identified as Ayoub B, was detained on Wednesday during a raid in the Brussels district of Molenbeek. He has been charged with terrorist murder and participation in the activities of a terrorist group.

Extra measures

Security was stepped up in other major European cities ahead of New Year celebrations, including Paris, London, Berlin and Moscow, with officials wary of possible terror plots. Munich police issued a warning of an imminent threat there.

Earlier this week, Austrian police claimed a "friendly intelligence service" had tipped them off that major European capitals were at risk of being attacked over the holiday period.

image copyright Reuters image caption Brussels is on high alert

While the French capital cancelled its main New Year fireworks display, the traditional gathering on the Champs-Elysees took place amid tight security.

image copyright EPA image caption Security on the Champs-Elysees in Paris is tight

Arrests in Ankara

On Wednesday, Turkish police arrested two suspected IS members over an alleged plot to attack celebrations in Ankara.

State media said they were planning two separate attacks on crowded areas. Suicide vests and explosives were found during police raids.

Security is also being tightened in cities where the authorities say there is no specific intelligence about a possible attack.

image copyright EPA image caption Moscow's normally crowded Red Square will be closed

Berlin bag ban

In Berlin, backpacks and fireworks were prohibited and bags searched on the "party mile" leading up to the Brandenburg Gate.

Up to a million people were believed to have attended the celebrations.

image copyright Reuters image caption Backpacks will be banned at the Berlin celebrations

Berlin's interior minister Frank Henkel encouraged party-goers to not allow fear to sour their celebratory mood. "Caution is a good counsellor, fear is not," he told broadcaster RBB

Precautions in London

London's Metropolitan Police have deployed 3,000 officers in the inner city, including extra armed officers.

More than 100,000 people are expected to watch the Mayor of London's fireworks show, a ticketed event.

"Our plans are purely precautionary and not as a result of any specific intelligence," said a spokesperson.

Asia drills

Australian officials had assured revellers that thousands of extra police would patrol major cities, but urged residents to celebrate. "Don't change your way of life," said Melbourne's Lord Mayor Robert Doyle.

The US embassy in Dhaka, Bangladesh, warned its citizens of "possible attacks" against hotels and clubs in the city in connection with New Year's Eve celebrations.