Lebanon's civil aviation authority said on Wednesday it has banned passenger jets from the country's airspace after a deadly plane crash in Ethiopia at the weekend.
On Sunday, a new Ethiopian Airlines 737 MAX 8 went down minutes into a flight from Addis Ababa to Nairobi, killing all 157 people on board.
This followed the October crash of a Lion Air jet of the same model in Indonesia, claiming 189 lives.
Despite Boeing's assurances that the 737 MAX is safe and reliable, countries including Britain, China and India have grounded the model or banned it from their airspace as they await the results of an investigation into the latest crash.
The widening action against the aircraft has put pressure on Boeing -- the world's biggest plane manufacturer -- to prove it is safe, and the company has said it is rolling out flight software updates by April that could address issues with a faulty sensor.
There are about 350 MAX 8s currently in service around the world.
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