Schwerin, Germany—A Syrian teen has been arrested for planning a terrorist attack.

On Tuesday, German police arrested 19-year-old Yamen A. for “planning an Islamist-motivated attack with high explosives.”

From the emerging reports, the suspect had been quite close to launching a strike with chemicals.

He hasn’t been linked to any terrorist organization so far.

“[We] prevented a serious terror attack in Germany,” said German Interior Minister Thomas de Maizière in a statement.

And the arrest isn’t the first to happen.  In 2017 alone, German federal law enforcement has investigated 900 terrorism-related cases.  A 400% increase from last year.

The terror threat in Europe remains high.

France just ended a state of emergency that lasted two years.  The emergency came as a result of consecutive Jihadist attacks, notably in Paris and Nice, that left 238 people dead.  A new counter-terrorism law that allows French police and security services to close religious facilities, conduct pre-emptive searches, and restrict suspects’ movements was voted, instead.