Ankara- Turkey will strengthen its observation points in Syria’s northwest and work with Russia against radical groups, President Tayyip Erdogan said on Tuesday.

Speaking to members of his AK Party in parliament, Erdogan also said that Turkey will hold a summit with Russia, Germany and France in October or November to discuss Syria, adding that Turkey will continue to seek a solution with the Syrian people, not the Russian-backed Syrian regime.

Meanwhile, the Syrian regime’s foreign minister said Iranian ballistic missiles that targeted militants in eastern Syria early Monday were part of “legitimate” cooperation between the two countries to combat terrorism.

Walid Al Mu’allem told the Beirut-based Al Mayadeen TV the strikes were coordinated with the Syrian regime.

His comments were broadcast Tuesday, a day after the missiles targeted the Islamic State group in Deir el-Zour province.

Iranian officials said the strikes were in retaliation for an attack on a military parade in Iran last month.

The Britain-based Syrian Observatory for Human Rights, which monitors the war in Syria, said the strikes killed eight people.

The Syrian regime and its allies, as well as the US-led coalition are separately battling Daesh, which still controls a sliver of land along Syria’s border with Iraq.