THE HAGUE - Ministers demanded greater intelligence sharing to stop extremist groups slipping across borders to carry out attacks, urging concrete commitments at talks Monday to stem dangerous intel lapses.

In the wake of the November 13 Paris attacks allegedly masterminded by a Belgian-born extremist, Belgian Foreign Minister Didier Reynders admitted more must be done.

"Intelligence services must get used to not only collecting information, but to sharing it," he told AFP on the sidelines of talks on how to thwart terror groups, attended by more than 50 countries.

"We are doing it more and more among European services, but there is still work to be done," he acknowledged at the conference hosted by The Netherlands.

While there was a lot of bilateral cooperation, Reynders said it was not happening "in a very structured fashion between very many states."

Held as part of the Global Counter Terrorism Forum and the Global Coalition to Counter ISIL, an alternative acronym for the Islamic State group, the talks were taking place nearly two months after the Paris attacks which killed 130 people.

And they come as The Netherlands begins its six-month rotating presidency of the European Union.

"What we face today is terrorism 2.0. Like a virus, it adapts to survive and becomes more resilient," Dutch Foreign Minister Bert Koenders told the opening of the talks. (AFP)