Just as crowds had gathered to mourn some of those killed in Tuesday's wave of pager bomb attacks, an explosion sparked chaos in Dahiyeh, Hezbollah's stronghold in southern Beirut.
A video captured the explosion, showing a man lying on the ground and people panicking, some screaming and running away, reports the Telegraph.
All this, moments before the funerals began, for an 11-year-old boy and three Hezbollah members killed the day before.
In the surrounding area, the sound of the explosion echoed through the streets. The songs stopped. Those gathered looked at each other, some surprised.
As reports spread that this was part of a second wave of blasts now targeting radio links, no electronic equipment was deemed safe.
Hezbollah supporters stopped the BBC team several times, asking them not to use their phones or camera.
Lebanese officials said at least 20 people were killed and 450 others injured across the country, with fires said to have broken out in dozens of homes, shops and vehicles.
Now, the latest attacks are being seen as another humiliation for the Iran-backed group, and a possible indication that its entire communications network may have been infiltrated by Israel.
Many people here inevitably wonder what comes next.
This is a country still shocked and outraged by what happened on Tuesday, when thousands of pages exploded in that synchronized attack after users received a message they believed came from Hezbollah.
