Denmark's Security and Intelligence Service says it has arrested two Danish-Somali brothers suspected of planning a terror attack.

The agency said in a statement Tuesday the men are suspected of having discussed the target and type of weapons to be used, and that a “specific act of terrorism” has been averted.

It also said one of the men is suspected of taking part in training activities in Somalia with the militant group al-Shabab.

The agency identified the brothers as an 18-year-old and a 23-year-old who have lived in the Aarhus region of Denmark for 16 years.

They were to appear in court Tuesday for a preliminary hearing.

The arrests come as four other men stand trial in Denmark for allegedly plotting a 2010 attack on the offices of a Danish newspaper that published cartoons of the Prophet Mohammed in 2005. A verdict in that case is expected next month.

In late April, the Security and Intelligence Service said three men were arrested near the Danish capital, Copenhagen, on suspicion of planning a terrorist attack.