Lebanon tightens security after series of explosions.
Authorities have banned passengers from bringing pagers and radios onto planes.
The tightening of measures comes after two days of explosive devices exploding in the country, Al Jazeera reports.
Official statement
As a result of the explosions of pagers and radios, at least 20 people were killed and more than 4,000 were injured, of whom about 500 lost their sight.
Following this, the Director General of Lebanon's Civil Aviation Authority issued a directive.
The ban applies to all cargo containing pagers and radios, including baggage and carry-on luggage at Beirut International Airport.
Security services will immediately confiscate these devices if they are discovered.
The measures are aimed at reducing the risk of new casualties and destruction.
Hezbollah blamed Israel for the incident, although it did not confirm its involvement in what happened in Lebanon.
