Israeli airstrikes, believed to target Hezbollah posts or shipments, have been reported at the Lebanese-Syria border.
According to local reports, the two strikes seem to be in Syria's territory.
Two Lebanese soldiers died after a suicide car bomb exploded at an army checkpoint in northeastern Lebanon near the Syrian border, security sources told Reuters.
The attack at the entrance to the city of Hermel, an area where the Shi'ite political and militant movement Hezbollah has a strong presence, also injured several people.
A car bomb has exploded at a Lebanese army checkpoint in the Hermal area of northeastern Lebanon, according to Reuters.
The number of casualties is currently unknown, however the attack was a suicide bombing, the report adds.
A explosion in the southern suburbs of Lebanon's capital Beirut has killed two people and wounded six, security sources told Reuters.
The area is a stronghold of support for the Shi'ite political and militant movement Hezbollah.
Iran's embassy in the same area was targeted by a bomb attack in November.
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Lebanon Foreign Minister tells me 'it's crazy that the Iranians are not here - how can there be agreement without them?' #Geneva2
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A Twitter account purportedly run by the Lebanese branch of the Nusra Front, a Syrian rebel group with links to al Qaeda, has claimed responsibility for a suspected suicide bomb attack in Beirut.
At least four people have been killed in a blast in Beirut's southern suburbs, a security source has told Reuters, attributing the blast to a suicide bomber wearing an explosive belt.
The source said another 20 people were wounded in the explosion, which occurred in a stronghold of the military and political movement Hezbollah.
An explosion has been heard and smoke seen rising over a Hezbollah stronghold in Beirut's southern suburbs, according to local reports.
At least three people have been killed and a number wounded after a car bomb went off near a local government building in the Lebanese town of Hermel.
Hermel is in Lebanon's Bekaa Valley near its northern border with Syria and is known as a stronghold of the Shi'ite militant and political movement Hezbollah.
There were no immediate details of casualties.