NICOSIA, Cyprus -- Cyprus police say a Lebanese-Canadian man who was arrested after the seizure of five tons of a chemical compound that can be turned into an explosive will remain in custody for another six days.

Police spokeswoman Nicoletta Tyrimou said a court approved the extension on Saturday.

The 26-year-old suspect, whose name has not been disclosed, was arrested last month after police confiscated the ammonium nitrate at a Larnaca house where he was staying.

He faces charges of conspiracy to commit a criminal offence and possession and transportation of explosives. Authorities are also probing whether he's linked to Lebanon's anti-Israel group Hezbollah.

The suspect's lawyer, Andreas Mathikolonis, said police are seeking two others in connection with the case. He said his client denies any wrongdoing.