He said the Community of the Sahel-Sahara States, a grouping of 28 African states, urged the Egyptian President to take further measures to help stabilize Libya.
"The situation in Libya is becoming increasingly complicated," Deby said in a press briefing in Cairo following his meeting with al-Sisi.
He called on Libyans to work together to reach a political settlement for the crisis in their country through dialogue.
"Neighboring states are also required to work on restoring peace and stability in Libya, whose stability is crucial to the region," the Chadian President said.
He added that more efforts should be made to implement a Libya roadmap approved by Arab foreign ministers in August of this year.
An Egyptian presidency statement, meanwhile, said that al-Sisi's talks with Deby focused on the situation in Libya, Sudan and the Central African Republic.
The Community of Sahel-Saharan States is the largest sub-regional African bloc. With members from North and Sub-Saharan Africa, it convenes two times every year.
Libya has been in political turmoil and violence since the 2011 ouster and death of long-ruling strongman Muammar Gaddafi.
In the more than three years since, rival militias have frequently locked horns, often bringing violence to the country's main cities, including capital Tripoli.
Iraq suffers from acute financial crisis due to dropped oil prices and anti-terrorism expenses
Thousands of supporters poured into the streets of the capital island Male on Friday night and continued their protest rally till early Saturday, the joint opposition said in a statement issued in Colombo.
Also suspended were the accounts of its parent organization, Strategic Communication Laboratories, as well as those of University of Cambridge psychologist Aleksandr Kogan and Christopher Wylie, who runs Eunoia Technologies.
Andrew McCabe was accused of misleading investigators on Clinton Foundation corruption case
Assistant Secretary of State Wess Mitchell told reporters after talks with Cypriot President Nicos Anastasiades on Friday that the U.S. also wants to see a resumption of talks to reunify the ethnically divided island nation.
"There were seven people aboard, they are all believed to be dead," the official said, adding they were US service members.
A doctor at the private Goyal Hospital told AFP Friday that Clinton had undergone screening after suffering pain in her right hand following a fall.
The alliance is "dealing with the issue around this and in cyber and working to define an understanding of what would be a trigger for Article 5," General Curtis Scaparrotti, the commander of NATO forces in Europe, told a US Senate committee.
Speaking to reporters as he returned from a trip to Oman, Afghanistan and Bahrain, Mattis said officials he met with had expressed frequent concerns about Iranian behavior.
The newspaper said that Trump is discussing potential replacements for McMaster, but is willing to take his time because he wants to avoid humiliating him as well as to have a successor ready.
19 individuals, 5 entities blacklisted by Washington
Saeb Erekat slams recent White House meeting on Gaza's deteriorating humanitarian situation
Salim al-Jabouri says Turkey and Iraq will defeat terrorism together through 'full cooperation'
Oil is the lifeblood of OPEC member Venezuela's economy, but a major wave of political unrest that shows no sign of abating has slashed output.