Iran said Saturday the US presence in Syria had been "wrong and illogical" from the start, in its first official reaction to President Donald Trump's decision to withdraw troops.

"The presence of American forces was from the very start, in principle, a wrong and illogical move and a primary cause of instability and insecurity in the region," said foreign ministry spokesman Bahram Ghasemi on his Telegram channel.

Against the advice of many in his own administration, President Donald Trump is pulling U.S. troops out of Syria. Could a withdrawal from Afghanistan be far behind?

Trump has said his instinct is to quit Afghanistan as a lost cause, but more recently he's suggested a willingness to stay in search of peace with the Taliban. However, the abruptness with which he turned the page on Syria raises questions about whether combat partners like Iraq and Afghanistan should feel confident that he will not pull the plug on them, too.

The United States said Monday it was no longer seeking to topple Syrian President Bashar al-Assad but renewed warnings it would not fund reconstruction unless the regime is "fundamentally different."

Burnt-out cars, craters and collapsed buildings dot the side of a road in the Syrian village of Hajin, after US-backed forces expelled the Islamic State group.

U.S.-backed, Kurdish-led fighters captured the last town held by the Islamic State group on Friday, after days of intense battles in the militants' single remaining enclave in eastern Syria, activists said.

The fall of Hajin is a blow to the extremists. The town was their main stronghold in the last pocket of land they control in eastern Syria, near the Iraqi border. IS still holds some villages nearby.

The UN Security Council on Thursday approved a one-year extension of humanitarian aid deliveries across war-scarred Syria.

Kurdish-led forces on Thursday moved deep into Hajin, the main village in the last pocket still held by the Islamic State group in eastern Syria, a war monitor said.

Faraj was born in the pouring rain on a nondescript stretch of desert road in eastern Syria as his family fled escalating fighting over the Islamic State group's last bastion.

His family was part of a group of around 200 civilians who managed to escape from a pocket of territory in Deir Ezzor province that is still held by the jihadists.

The United Nations and aid partners on Tuesday said they need $5.5 billion to support countries hosting millions of Syrian refugees, including a million babies born in displacement.

Israeli jets bombed several areas in southern Syria and near Damascus on Thursday drawing retaliatory fire from the ground, a monitoring group said.