December 12, 2015 11:27 AM EST

Two men of Syrian origin have been arrested in Geneva on suspicion of making explosives and having links to extremist groups, Switzerland’s attorney general’s office announced Saturday.

Prosecutors said that a criminal proceeding has been opened against the pair for the manufacturing, concealing and transporting of explosives and toxic gases, as well as on suspicion of violating a federal law prohibiting “groups like al Qaeda, [ISIS] and similar organizations.”

The two were arrested Friday, the statement added.

The news of the arrest came two days after police in the city said they were looking for several suspects “on the basis. . .

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