I just saw this photos on bintjbeil.org of an accident inside the airport tunnel last night involving 20 cars but luckily without injuries.
A normal accident on that road usually causes a 30-60 minutes traffic jam due to how narrow the road is, so I can’t imagine how much people had to wait last night until everything got cleared and the tunnel was opened again.
Also, knowing that this is a vital road that connects Beirut to the southern cities and town, I never understood why the government decided to make it a two-lane road only when it was constructed in the nineties which creates a mess not only when accidents occur but also when a car simply breaks down and parks on the right sometimes. And this is why I personally have been avoiding that tunnel for two years now and always go through Ouzai instead.