The Free Syrian Army (FSA) units backed by the Turkish military have taken control of Afrin town center, as part of Turkey's Operation Olive Branch to clear PKK-linked People's Protection Units (YPG) and Daesh terrorists in northern Syria, President Recep Tayyip Erdoğan said Sunday.

Speaking at the commemoration ceremony of the 103rd Anniversary of the Battle of Gallipoli, Erdoğan said that the Turkey-backed FSA forces entered the Syrian city as of 8:30 a.m. on Sunday.

The president noted that the Turkey-backed forces declared victory over terrorists in the area, who fled the city.

He highlighted that Turkey will immediately take necessary steps to make sure that the residents of the city are able to return to their homes as soon as possible.

"The terror corridor has been broken in four fronts," the president said, referring to the attempts by the PKK-linked YPG to establish a terror corridor along the border with Turkey.

Reports noted that gunshots and explosion sounds are being heard in the area, while Turkish fighter jets continue to fly over the city.

"Fighting is ongoing inside the city, where Turkish forces and allied opposition units have seized some neighborhoods," the Britain-based Syrian Observatory for Human Rights monitoring group said, according to the French Press Agency (AFP).

The military noted that the Free Syrian Army cleared Mabatli town in Syria's Afrin from terrorists, taking control of all town centers.

The entrance into Afrin town center coincides with the 103rd anniversary of the naval victory of the Ottomans against the Allied forces during World War I, as well as the commemoration of the thousands who lost their lives during the Gallipoli Campaign.

Turkish soldiers dedicated the victory in Afrin to the martyrs and Turkish people.

In a later speech, President Erdoğan announced that a total of 46 Turkish soldiers have been killed in action and 225 others have been injured in the operation in Syria's Afrin.

Meanwhile, the Turkish Armed Forces also announced that a total of 3,603 terrorists have been "neutralized" since the beginning of the opreation.

Operation Olive Branch was launched by Turkey on Jan. 20 to remove the PKK/PYD/YPG/KCK and Daesh terrorists from Afrin in northwestern Syria.

According to the Turkish General Staff, the operation aims to establish security and stability along Turkish borders and in the region as well as to protect Syrian people from the oppression and cruelty of terrorists.

The operation is being carried out under the framework of Turkey's rights within international law, U.N. Security Council resolutions, its right to self-defense under the U.N. charter and respect for Syria's territorial integrity, it said.

The military also said, "utmost importance" is being placed on not harming any civilians.

The operation in Afrin – bordering Turkey's Hatay and Kilis provinces – was widely expected in the wake of Turkey's Operation Euphrates Shield in northern Syria, which cleared Daesh terrorists from Turkeytarget="_blank"'>