A Greek minister on Monday warned of the potential for radicalization among frustrated migrants stranded at the Idomeni refugee camp on the Macedonian border, Greek news service Skai reported.
"What you're seeing today are the jihadists of tomorrow," Nikos Toskas, Greek minister for citizens' protection, told the broadcaster. He added that authorities must thoroughly consider their handling of the situation.
Macedonian police used teargas Sunday to prevent hundreds of migrants from breaking across the border from Greece, the Macedonian interior ministry said. At least 300 migrants and 23 police officials were injured as a result of the escalation in tensions, according to local authorities and humanitarian organizations.
The migrants refused to go to the official camp ground at Idomeni, hoping instead to force officials to allow them to continue their journey towards wealthier nations further north.
Local Mayor Christos Goudenoudis pushed for the camp to be cleared by the end of the month. "The situation is on razor's edge," he told Skai on Monday.
Meanwhile, the number of migrants coming from Turkey to Greece had drastically dropped in the wake of a deal between Ankara and the European Union to return irregular arrivals.
Only 18 migrants were reported as having made the sea journey from Turkey over a 24-hour period, the office in Athens responsible for the migration crisis said Monday, compared with 162 the day before.