Belgian prosecutors are appealing to the public for information about a man who allegedly traveled to Hungary last year with the top suspect in the Paris attacks.

The federal prosecutor’s office said in a statement Monday that they are seeking details about 24-year-old Najim Laachraoui, who is said to have traveled to Syria in February 2013.

It said Laachraoui was checked by guards at the Austria-Hungary border while driving in a Mercedes with attacks suspect Salah Abdeslam, who was captured in Brussels on Friday, and one other person.

Laachraoui is said to have rented a house under the name of Soufiane Kayal in the Belgian town of Auvelais which was allegedly used as a safe house. Prosecutors said traces of his DNA were found there.

(AP)