BEIRUT: Lebanon's pro-Western opposition on Wednesday called on the Hezbollah-dominated government to end its support for the regime of Syria's Bashar al-Assad, warning that Beirut risked isolation.

"As the crisis faced by the Syrian regime escalates, so does the risk of instability and security breaches in Lebanon," the March 14 coalition said in a statement.

"We demand the government immediately cease its support for the Syrian regime, including its diplomatic support, so as to ensure Lebanon does find itself isolated from Arab ... and international legitimacy."

Foreign Minister Adnan Mansour, who represents the Hezbollah-led majority in the Lebanese government, has stressed his country's support for the Assad regime at a string of Arab League meetings on Syria.

An alliance loyal to Iranian- and Syrian-backed Shiite group Hezbollah dominates the majority of seats in the cabinet of Prime Minister Najib Mikati.

The opposition, led by Saudi-backed former premier Saad Hariri, also condemned the regular incursions by Syrian troops into Lebanese territory that have left three Syrian civilians dead.

Several Syrian opposition figures, meanwhile, have been reported missing in Lebanon and are feared kidnapped.

"We reject this blatant violation of Lebanon's sovereignty... and will inform the international and community that Lebanon is being targeted," the March 14 statement said.