Hezbollah and the Lebanese AMAL movement on Monday said they would continue to stand by Syria and Iran against "international conspiracies".

Hezbollah and the AMAL movement on Monday said they would continue to stand by Syria and Iran against "international conspiracies" and "threats", as global pressure mounts on the two countries.

"The current events in Syria are clearly an international conspiracy against Syria's support for Arab and Islamic resistance movements in the region," they said in a joint statement.

"Lebanon will never be a conduit for a conspiracy against a sister state."

The statement comes amid renewed international pressure on Syrian President Bashar Assad over his brutal crackdown on an eight-month popular revolt.

Hezbollah and AMAL also reiterated their support for Iran, as pressure mounts on the Islamic state over its nuclear program.

"We firmly support the Islamic Republic of Iran against all American and Israeli threats," the statement said.

Hezbollah earlier this month accused Washington of ramping up pressure on Iran and Syria as a way to deflect attention from its "searing defeat" in Iraq.