Livestream footage of the Beirut skyline over a two-hour period showed the moment devices exploded across the city on Wednesday, after thousands of walkie-talkies exploded in Lebanon.
Explosions were also seen in other locations in the country – including during a funeral – in footage shared on social media.
Just a day earlier, thousands of pagers used by members of the armed group Hezbollah exploded in the country.
The walkie-talkie blasts killed 20 and injured at least 450; the pager explosions killed 12 and injured more than 2,000.