Almost one year after the Berlin Christmas market attack that left 12 innocent people dead, six Syrian men planning to carry out another attack were arrested by German authorities on Tuesday morning.

The Telegraph reports "the target of the planned attack was a traditional Christmas market which opens in the western city of Essen next week" and that the suspected men all entered the country as asylum seekers.

"Authorities were alerted to the suspects by other asylum seekers who recognized them as jihadists who had fought for Isil in Syria," reports The Telegraph. "Officials have yet to comment on the target of the planned attack."

As to the intended nature of the attack, prosecutors involved said the men planned to carry out a terrorist attack utilizing weapons and explosives.

In December 2016, Tunisian migrant Anis Amri, at the instructions of ISIS, drove a truck through crowds of Christmas shoppers in Berlin, killing 12 people and injuring another 56. Then President-elect Donald Trump called the incident "an attack on humanity."

The men arrested Tuesday ranged between ages 20 and 28; four of them "entered Germany as asylum seekers in September 2014, before Angela Merkel opened the country’s borders in her controversial refugee policy, while the other two arrived in 2015."

According to Straits, the arrest marks the second time in a month that Syrians have been taken in by authorities on suspicions of terrorist activity.

"Earlier this month, a 19-year-old Syrian man was detained on suspicion of planning a bomb attack," Straits reports.

To prevent another Christmas market attack, concrete blocks have been installed around the central squares to keep trucks from plowing into people enjoying the festivities.