BEIRUT: A war monitor said Israeli strikes in and around Damascus on Thursday killed 20 people including Palestinian fighters and Iran-backed fighters, as attacks intensify during the Lebanon war.

Israel has ramped up strikes on Syria recently, including in areas near the Lebanese border mainly targeting bastions of Hezbollah. Israel has been at war with the Lebanese group since September.

`The death toll from the Israeli strikes on the Mazzeh neighbourhood and Qudsaya rose to 20 people, in addition to 21 other wounded,` the Britainbased Syrian Observatory for Human Rights said.

The Mazzeh neighbourhood, home to embassies, United Nations offices and security headquarters, has been the target of previous strikes blamed on Israel.

Qudsaya is located on the outskirts of Damascus.

`Israeli strikes destroyed three multi-storey buildings in the Mazzeh neighbourhood, killing 10 people, said the Observatory with a network of sources inside Syria. It added that the dead included at least three civilians and two non-Syrian Iran-backed fighters.

In Qudsaya, Israeli jets targeted `an apartment complex housing Palestinians, killing 10 people, including at least three members of the Palestinian Islamic Jihad movement,` the monitor said.

Syria`s defence ministry said the twin Israeli air strikes killed 15 people after `targeting residential buildings in the Mazzeh neighbourhood of Damascus and the Qudsaya area in the Damascus countryside`.

The official SANA news agency published video footage of smoke covering a street.

Early last month Syria`s government said seven civilians were killed in an Israeli air strike, in the Mazzeh district, which the Observatory said targeted a building used by Iran`s Revolutionary Guards and Hezbollah.

In April, Syrian and Iranian officials blamed Israeli air strikes for the destruction of Iran`s embassy consular annex in Mazzeh. The strike killed seven members of Iran`s Revolutionary Guards.

That attack led to Iran`s first ever direct strike against Israeli soil, a barrage of drones and missiles, which in turn led to an apparent Israeli retaliation, raising fears of regional conflagration.

US sanctions The US unveiled sanctions on Thursday against 26 people, firms and ships allegedly associated with a Syrian conglomerate making hundreds of millions of dollars selling oil on behalf of Iran and its proxies.

The US Treasury Department said in a statement that its designations were related to the Al-Qatirji Company, which it accuses of generating vast revenues for the Houthis and Iran`s Islamic Revolutionary Guard Corps-Quds Force (IRGC-QF) the IRGC`s foreign operations.

The firm did this by selling Iranian oil to Syria and China, the Treasury said, adding that it had previously facilitated the sale of fuel between Syria and Islamic State.

`Iran is increasingly relying on key business partners like the Al-Qatirji Company to fund its destabilising activities and web of terrorist proxies across the region,` said Bradley Smith, acting Treasury under secretary for terrorism and financial intelligence.-Agencies