From Israel National News:
[…]
On Thursday, the Algerian army raised its alert level to the highest level and has drafted some 50,000 troops to ward off ISIS ahead of an anticipated invasion; authorities cited the Libyan army’s inability to defend its Western borders and Sirte’s downfall.
An anonymous source told Turkey’s Andalou News agency that “the Algerian army received strict orders to shoot immediately in the event of any attempt to infiltrate into the Algerian territory.”
H/T CB Sashenka
A map helps:
http://www.theodora.com/pipelines/north_africa_pipelines_map.jpg