Spanish police have detained a man for collaborating with the separatist organization ETA, according to media reports released on Friday. The police detained Pedro Maria Olano Zabala, who was sentenced to two years imprisonment, for collaborating with the ETA.

Euskadi Ta Askatasuna, or the ETA, is considered as a terrorist group by both the United States and the European Union. In the online edition of El Mundo, it was reported that this is the first detention of its kind this year.

Pedro Maria Olano Zabala was arrested in Lizartza in the Basque region, and two other homes were also searched. According to public radio RNE, Zabala has been detained on the suspicion of transporting explosives for the terrorist group.

The government had issued a warning last month of an ETA attack or kidnapping attempt during Spain’s EU presidency. The terrorism level had been raised to two from one on a scale of four, highlighting the “probable risk of a terrorist attack”.

The ETA is considered responsible for over 800 deaths in the Basque region in a 41 year long campaign for independence in the northern parts of Spain.