Turkish President Recep Tayyip Erdogan said on Monday that Türkiye was advising Syrian authorities to help ease tensions and welcomed interim Syrian President Ahmed al-Sharaa's commitment to punishing those who acted outside the law.
"Sharaa is pursuing an inclusive policy without falling into the trap of revanchism. Continuing this approach will thwart the games being played against Syria," Erdogan said after a cabinet meeting in Ankara.
Erdogan's political opponents have urged him to use his influence over Syrian leaders to curb the violence that erupted in the neighboring country in recent days.
The main opposition Republican People's Party (CHP) called for an international peacekeeping force to maintain security in western Syria, just south of Türkiye, if the government could not ensure civilian safety there.
Clashes between loyalists of deposed President Bashar al-Assad and the country's new rulers have killed scores of people in Assad's coastal heartland in recent days, according to a war monitoring group.
Türkiye, the strongest foreign backer of Sharaa, has condemned the violence and reiterated its support for the interim president.
The instability could damage Ankara's hopes of ending a decades-old conflict with Kurdish militants, some based in Syria, and possibly slow a flow of Syrians returning home from Türkiye in recent months after 13 years of war in Syria.
"Türkiye must take initiatives with the Damascus administration and make the necessary efforts to prevent such incidents from happening," Ali Mahir Basarir, a senior CHP lawmaker, said during a visit to the border province of Hatay.
"The escalation of clashes represents a major risk for Türkiye," he added.
Visiting Jordan at the weekend, Foreign Minister Hakan Fidan said Türkiye was determined to assist the Syrian government in every way and support stabilization efforts.
Sharaa has vowed to catch those responsible for the killings, and Syria's defense ministry announced on Monday the completion of military operations against the remnants of Assad's forces.
Relative calm followed Assad's ousting in December. Syrian security sources said over the weekend more than 300 of their members had been killed in clashes with former army personnel owing allegiance to Assad in coordinated attacks and ambushes on their forces that began on Thursday.
Türkiye has backed anti-Assad Syrian forces for years and maintains bases in Syria's north. Its defense ministry said there was no surge in deployments late last week, after sources in Syria said more armored vehicles had crossed the border.
"We see that certain sectarian and ethnic provocations are being used by certain groups through proxy forces," Omer Celik, the spokesman for Erdogan's ruling AK Party, said on Sunday.