A Moroccan man who was denied political asylum in Germany suffered severe burns when he doused himself in petrol and set himself on fire in front of shocked passers-by, police said Sunday.

The 36-year-old man had announced his suicide attempt in a phone call to police, ahead of his scheduled deportation Monday by German authorities.

Libya's rival parliaments are to resume U.N.-brokered talks in Morocco on Thursday on forging a united administration for the divided and violence-wracked country, a diplomatic source told AFP.

That is a day later than planned by the United Nations and comes despite a statement adopted unanimously by the Security Council late on Monday saying that it awaited the resumption of the talks "with impatience".

Authorities in the Libyan capital vowed Monday to boost security after twin attacks on foreign embassies but warned that a lack of international recognition was hindering their fight against jihadists.

The appeal came as political party leaders and activists gathered in the Algerian capital for a new round of U.N.-mediated peace talks aimed at reaching an accord to end the chaos and violence at home.

U.N. chief Ban Ki-moon called Friday for a new push to resolve the conflict over Western Sahara and stressed that cooperation to address human rights could help find a settlement.

In a report to the Security Council, Ban said Morocco and the Algerian-backed Polisario Front must "seriously engage" with his envoy and "intensify their efforts" to end the conflict over the north African territory.

Schoolchildren returning from a sports competition in Morocco were among 31 people killed Friday in a head-on collision between a truck and a bus that caught fire, officials said.

The accident in southern Morocco is the worst in the North African kingdom since September 2012 when a bus plunged into a ravine, killing 42 people.

The bodies of two Spanish cavers were transferred to a morgue Tuesday as a fellow climber who survived their plunge into a deep ravine in Morocco's High Atlas mountains flew home.

An AFP photographer said Spanish diplomats were present as the bodies of Gustavo Virues and Jose Antonio Martinez arrived at the morgue of Bugafer hospital in the southern city of Ouarzazate.

The sole survivor of three Spanish cavers trapped for days in a deep ravine in Morocco's High Atlas mountains was "in good health" Monday after a complicated rescue, officials said.

Emergency services were struggling Sunday to rescue two Spanish cavers from the bottom of a deep ravine in Morocco's High Atlas mountains, a day after a third was reported dead.

Morocco's news agency MAP said a unit of Spanish rescue experts was due in Ouarzazate Sunday to help with the operation to extract them.

Moroccan emergency services launched a rescue operation for three Spanish cavers Saturday found apparently alive by search teams in the High Atlas mountains, an official said.

The trio were found at the bottom of a cliff in the Tamest area, Morocco's MAP news agency reported, without immediately giving any word on their state of health.

A Spanish court on Wednesday remanded in custody a Moroccan woman suspected of trying to send her twin 16-year-old sons to Syria to become jihadi fighters, a year after her other son was killed there.

Spain's National Court, which is charged with terrorism cases, ordered that the woman be held in jail for the suspected crime of cooperation with a terrorist organization.