This is connected to a prior arrest of Somali nationals in Finland on terror related charges.
New arrest in the terrorism case
HS: Finland’s first counter-terrorism investigations have been made yet another arrest. Police have arrested one person in the morning the metropolitan area, who is a Finnish national and an ethnic Somali.
In addition, the Central Criminal Police and Security Police have made home searches and seizures related to the case.
There are now six people people suspected of a crime, one of whom is in custody. Police estimate that the pre-trial of the case will last for months yet.
UPDATE: YLE, the Finnish state broadcaster is stating that :
Related to the same case, is the continued imprisonment of one person. He has been imprisoned since the early autumn of 2011. He is also an ethnic Somali. In total there are six suspects, including two on a travel ban. […] Two of the suspected can be reached abroad, and one can not be found.
NOTE: This is an example of the mainstream media not being able to report a story correctly. The say in both article that 6 people in all, are suspected of involvement, though they speak of seven individuals.
– 2 are in fact in custody
– 2 are on a travel ban
– 2 are abroad and 1 can not be reached.
That adds up to seven in my thinking.