Turkey gave less than 1 hour notice before Syria strikes

The Turkish airstrikes on Tuesday killed 20 members of the People's Protection Units, or YPG, in Syria, and five peshmerga fighters in Iraq.

In northeast Syria, strikes targeted the Kurdish YPG, which Ankara sees as offshoot of the outlawed Kurdistan Workers' Party (PKK).

The US Department of State said it was "deeply concerned" the strike was conducted "without proper coordination" either with the US military or commanders within a broader worldwide coalition, which claims to be fighting Daesh Takfiri terrorists in Iraq and Syria.

The targets were hit to prevent the PKK from sending "terrorists, arms, ammunition and explosives to Turkey", the statement said, adding that the operation was conducted "within the scope of the worldwide law". "It is necessary to demonstrate due political foresight and focus attention on a most important for today task - countering worldwide terrorism represented by Islamic State, (Jabhat al) Nusra and other affiliated groups", the ministry said.

The Peshmerga released a statement blaming the strikes on the presence of the PKK group, which is usually based in Turkey.

Other airstrikes targeted Kurdish fighters in Sinjar, northern Iraq, where Peshmerga forces announced the killing of six of their members.

Earlier, a report published by Turkey's Hurriyet newspaper said that the Turkish army has a plan in Sinjar.

In an emailed statement to The Associated Press, the USA -led coalition said Iraq's neighbors need to respect Iraqi sovereignty. The move was part of an ongoing USA crackdown in response to Syrian President Bashar Assad's alleged use of chemical weapons.

The US State Department said it was "deeply concerned" that the strikes were conducted "without proper coordination either with the United States or the broader global coalition" against the Islamic State group (IS). Turkey says they're an extension of the PKK, and that PKK fighters are finding sanctuaries in Iraq and Syria.

On Tuesday, Turkey also struck targets near Mount Sinjar in Iraq for the first time, widening its air campaign there.

In the U.S. on Tuesday, President Donald Trump's administration sharply criticized Turkey for attacking Kurdish militants in Syria and Iraq, accusing the U.S. North Atlantic Treaty Organisation ally of failing to coordinate the airstrikes with the American-led coalition against Islamic State militants.

The group forms a key component of the US-backed Syrian Democratic Forces (SDF) and has been closing in on ISIL in Raqqa.

"The United States is sending a strong message with this action that we will hold the entire Assad regime accountable for these blatant human rights violations in order to deter the spread of these types of barbaric chemical weapons", said Treasury Secretary Steven Mnuchin.

An airstrike in Idlib on Tuesday killed at least 12 people, including civilians, the Observatory said.

Two more terrorists were killed in another air operation in southeastern Sirnak province, the source added.