Libyan border guards rescue migrants left in desert near Tunisia

Group numbering at least 80 discovered in uninhabited region reportedly without water, food or shelter

Libyan border guards have rescued dozens of migrants they said had been left in the desert by Tunisian authorities without water, food or shelter.

Hundreds of people from sub-Saharan African countries were forcibly taken to desert and hostile areas bordering Libya and Algeria after racial unrest in early July in Sfax, Tunisia's second largest city.