He made the remarks during a meeting with Turkish Foreign Minister Mevlut Cavusoglu in Tehran on Wednesday.
Turkish President Recep Tayyip Erdogan has rejected the recent statement by the head of Turkey's Republican People's Party (CHP), Kemal Kilicdaroglu, regarding a potential meeting between Ankara and Damascus, Al-Masdar News says.
He warned against what he called attempts to "alter geographical borders in the region" including that of Syria.
On Jan. 20, the Turkish Armed Forces, together with the Free Syrian Army, launched the Operation Olive Branch in Afrin, Syria.
Russian Federation has also voiced concern about the Turkish military operation in Afrin.
"The coalition conducted strikes against attacking forces to repel the act of aggression", a coalition spokesman said.
"We oppose the presence in Syria by the Americans who have incorrect goals in the region and are thinking of disintegrating Syria", Rouhani told Iranian and foreign reporters in a press conference in Tehran.
"Fortunately, trilateral ties among Iran, Turkey and Russian Federation over regional issues have been highly significant and instrumental", Rouhani said, calling for further cooperation and consultations to solve the Syrian crisis.
Syrian National Dialogue Conference was held in the southern Russian city of Sochi on January 29-30.
Bilgic said Turkey has informed worldwide organizations, including North Atlantic Treaty Organisation and the United Nations, as well as its neighbors about the operation.
Abdurrahman Bilgic met a group of British journalists in a news briefing held at the embassy residence and underlined that the operation is being carried out within the scope of the worldwide law.
For his part, the Turkish foreign minister said the USA was devising new plots in the region to undermine the growing ties between Ankara and Tehran, urging active cooperation in the face of such schemes.
"We maintain that regional states should stand up against plots hatched up with the aim of violating their territorial integrity", he was quoted as saying in a Farsi report by the Iranian president's official website.
On the Afrin offensive, the top Turkish diplomat said that the operation was temporary and only aimed at terrorists in that region.
Putin and Erdogan discussed what the Kremlin said was "the importance of continuing the joint work of Russia, Turkey, and Iran" on Syria.