The violence in Syria threatens an uneasy truce in neighbouring Lebanon where guns have reappeared on the streets after years of peace.
There has been violence in the Lebanese capital Beirut today following the funeral of a security chief whose death many blame on Syria.
For the people of Beirut, Friday's car explosion is a bloody and terrifying throwback to the bad old days of civil war.
Syrian state television has claimed that Israeli warplanes attacked a research centre near the capital Damascus at dawn today, according to Reuters.
Israeli warplanes have bombed a military site near Damascus, the Associated Press reports citing the Syrian state news agency.
A well-placed Israeli defence analyst has told me that an airstrike reported to have taken place on the Syria-Lebanon border did indeed happen.
The target was a truckload of scud and anti-aircraft missiles believed to be bound for the militant group Hezbollah.
He told me that the hit happened in Hezbollah territory inside Lebanon.
However, as the Syrian, Lebanese and Israeli governments are likely to stay silent on the strike, this could be end of it for now.
A Lebanese news agency is now denying that there's been an Israeli strike on its border with Syria.
A Lebanese military source has told me he heard sonic boom from jets last night, but no boom of an explosion.
Media in Israel are reporting that there has been an Israeli airstrike on a weapons convoy heading from Syria towards Lebanon.
The reports come after Israel raised fresh concerns about Syrian chemical weapons getting into the hands of the militant group Hezbollah.
The Israeli military has declined to comment.
Five men have been killed in the Lebanese port city of Tripoli today during sectarian clashes between gunmen loyal to opposing sides in neighbouring Syria's civil war, residents told Reuters.
Ten people have now died in sporadic clashes in the city since Tuesday, the latest bout of violence that has roots in Lebanon's own 15-year civil war but which has intensified as Syria's conflict polarised Lebanese society.
The unfired rockets, which were mounted on launchers, were found in the town of Halta about 1 km from an Israeli military site on Mount Hermon.
They appeared to have put in the area since the offensive on Gaza began last week, the security sources said.
Lebanese soldiers surrounded the area around the intended launch site and cut off several nearby roads, according to a Reuters journalist in the area.
European Union foreign policy chief Baroness Ashton met with Lebanon's Prime Minister Najib Mikati in his Government Palace in Beirut this morning to discuss the ongoing crisis in Syria. Baroness Ashton is on a tour of the region.
Mikati was working from home three days after he suspended his decision to resign in protest at the assassination of security official Wissam al-Hassan.
The visit comes as Lebanese troops continued their major security operation to open all roads and force gunmen off the streets of Beirut and Tripoli.
The army is trying to contain an outburst of violence set off by the assassination of al-Hasan.
The Lebanese Army are on the streets of Tripoli this morning after overnight clashes killed one Syrian man, according to local reports. Eight people have now died in the city in sporadic violent outbursts prompted by the death of senior intelligence officer Wissam al-Hassan.
Al-Hassan was strongly opposed to the Syrian regime, and his supporters, many of them Sunni Muslims, blame Damascus for the killing.