Syria's foreign minister said on Monday the situation in Idlib was untenable if jihadists do not comply with a Russian-Turkish agreement for the area, on the day of a critical deal deadline.
Foreign Minister Walid al-Moualem said it was up to Russia now to judge whether the deal to prevent a Syrian government offensive on Syria's rebel-held Idlib had been fulfilled.
"We cannot keep quiet about the continuation of the current situation in Idlib if the Nusra Front refuses to comply with this agreement," al-Moualem said at a press conference with his Iraqi counterpart Ibrahim al-Jaafari in Damascus.
The deal sets up a demilitarized zone running 15-20 km (9-13 miles) deep into rebel territory that must be evacuated of all heavy weapons and all jihadist groups by Monday.
"Now we must give the time to our friends the Russians to judge whether the agreement was fulfilled or not," he said, adding that Turkey has the means to ensure the deal is complied with.
"For us we said always Idlib, as any other province, has to return back to Syrian sovereignty. We prefer to have it through peaceful means, through reconciliation, but if not there (are) other options," Moualem said.
He added that the government's next target after recovering Syria's Idlib from rebels was the area east of the Euphrates, indicating territory held by the US-backed Syrian Democratic Forces (SDF).
"After Idlib our target is east of the Euphrates," said Walid al-Moualem, adding that the area, like all parts of Syria, had to return to Syrian sovereignty.