The leaders of Turkey, Russia and Iran plan to come together for another summit to discuss ongoing tensions in war-torn Syria.
The meeting will take place in August in Turkey, Turkish presidential spokesman Ibrahim Kalin said Thursday.
The government in Moscow also confirmed the summit, but no date has been announced yet.
The three governments have met on multiple occasions.
In February, Russian President Vladimir Putin hosted a trilateral summit with Turkish President Recep Tayyip Erdogan and Iranian President Hassan Rouhani to discuss a long-term solution to the crisis in Syria.
Russia reached a ceasefire deal with Turkey last year to prevent a Syrian state offensive into the north-western Idlib province, on the Turkish border.
Turkey has sought to prevent such an offensive, which would have the potential to drive more refugees into Turkey.
Idlib and parts of Hama were declared declared de-escalation zones in a deal between Russia and Turkey, but Turkey says the ceasefire in Idlib has been violated regularly by Syrian President Bashar al-Assad's forces since then.
In late April, the forces of al-Assad, supported by Russian air power, started a massive campaign against rebels in the provinces of Hama and Idlib, the last major opposition stronghold in the country.
On Thursday, Syrian regime air strikes on an anti-government bastion in the northwest of the country killed four civilians, two of them children, and hit three hospitals already damaged in previous raids, a monitor said.
A fifth person, another child, was killed in a separate air raid by regime ally Russia also in the Idlib region, the Britain-based Syrian Observatory for Human Rights war monitor said.
"Regime warplanes again targeted three hospitals in the south of Idlib," which had been hit and damaged in raids in previous weeks, the Observatory said.
There were no casualties in these raids on the village of Hass and the town of Kafr Nabl, it added.
Obeida Dandouch, who heads a rescue group in the area, said the strike in Kafr Nabl damaged a large part of what was still standing at the local hospital.
In May, Amnesty International accused the Syrian regime and Russia of launching "deliberate and systematic" assaults on hospitals in the northwest.
At least 25 hospitals and clinics have been destroyed or damaged by air strikes and shelling since the end of April, according to the United Nations.
Five rescuers were also killed in the last two weeks of June in air strike on the Idlib region.
Thursday's strikes killed four civilians, two of them children, in Kafr Nabl, Hass and the town of Khan Sheikhun in Idlib region, the Observatory said.
A Russian air strike near Al-Bara village killed a little girl and wounded several people, it added.
Syria's war, which started in 2011 with the brutal repression of anti-government demonstrations, has killed more than 370,000 people and displaced millions.