Twin car bomb blasts have hit the northern Lebanese city of Tripoli killing at least 42 people and injuring over 500.
The explosions happened shortly after Friday prayers outside two mosques in two separate locations in the mainly Sunni Muslim city.
One blast was outside the Taqwa mosque, frequented by hardline Sunni Islamists.
Others died in the explosion at the al-Salam mosque.
The carnage comes a week after a huge explosion killed 24 in a stronghold of the Shi’ite Muslim militant group Hezbollah.
The ongoing conflict in neighbouring Syria is being cited as the reason why sectarian violence appears to have returned to Lebanon.
In Syria the Shi’ite Muslim forces of President Basher al-Assad are engaged in a civil war against a largely Sunni-led rebellion.