UPDATE: Air Algeria plane lands safely after snag

 An Air Algeria plane en route to Marseille has been forced to return to Algiers due to an unspecified technical failure.
The airline said the plane landed safely in the Algerian capital on Saturday around 30 minutes after takeoff and no one was injured.

It said passengers are expected to board another plane for Marseille in southern France later in the day.
It didn't immediately provide any more details about what caused the emergency.
Meanwhile, Twitter is abuzz with speculations.
 
 

Folks it did not crash ADS-b does not work below 17,000 ft in this area all planes wont show up. #AH1020

AH1020
- Northerntomcat (@Northerntomcat) August 6, 2016

Possible radar glitch is being reported for #AirAlgerie flight #AH1020
- Plane has landed at Algeries airport
- Technical failure
- Censored News (@NewsCensored) August 6, 2016

We believe Air Algérie #AH1020 to be a *coverage issue* NOT a missing aircraft. Our ADS-B coverage in Algeria is limited.
- Flightradar24 (@flightradar24) August 6, 2016

Update: Air Algerie Flight 1020 has landed safely in Algiers. As mentioned, it was just a lack in coverage from flight trackers. #AH1020
- BNO Newsroom (@BNODesk) August 6, 2016