Danish police have arrested nine people suspected of planning a terror attack in Denmark, according to reports from the Danish capital Copenhagen on Tuesday.

There were indications that the suspects were likely planning an attack somewhere in Denmark, Justice Minister Lene Espersen said.

The nine, who had gathered materials to make explosives in apparent preparation for a terror attack, were arrested overnight in the heavily immigrant-populated neighborhood of Vollsmose, a suburb west of Odense in central Denmark.

Anti-terror investigators said they were not sure how far the terrorist plans had progressed but decided to launch a pre-emptive raid on the group.

The suspects, whose identities were not disclosed, were all aged under 30, said Lars Findsen, head of the Danish Security Intelligence Service.

Denmark raised its terror preparedness after the London terrorist attacks last year and disputes earlier this year over cartoons of the Prophet Muhammad which were first published in a Danish newspaper.

Source: Xinhua