The Takfiri group, ISIL, has claimed responsibility for the suicide bombing of a checkpoint in a key Libyan oil region that killed six people including a baby.

The Takfiri group, ISIL (so-called Islamic State in Iraq and Levant) has claimed responsibility for the suicide bombing of a checkpoint in a key Libyan oil region that killed six people including a baby.

The terrorist organization’s Libya branch released a statement saying that Thursday's attack in Ras Lanouf, east of the ISIL-held coastal town of Sirte, was carried out by a foreign fighter using an explosives-packed car.

Another suicide bomber on Thursday attacked a police training school in Zliten, west of Tripoli, killing more than 50 people. No group has yet claimed responsibility for that attack.

ISIL has been growing in power in Libya, feeding on the chaos that has gripped the country since the 2011 revolution that toppled longtime dictator Moamer Kadhafi.

On Monday it launched an offensive against the oil terminals in Ras Lanouf and nearby Al-Sidra, after trying for weeks to push east from Sirte.

World powers fear Libya could descend further into chaos and become an ISIL stronghold on Europe's doorstep.