African countries could set up a special fund to combat Islamist militant groups, the continent leaders proposed on African Union Peace and Security summit in Nairobi.
Kenya's President Uhuru Kenyatta said African countries should stand together against the threat of Boko Haram and Al-Shabaab.
Al-Shabaab militants killed 67 people in a raid on a shopping mall in Kenya last September.
"No single state can tackle this threat alone," Mr Kenyatta said. "It is particularly worrying in Africa today that terrorist organizations have grown both in terms of number and capability."
We emphasised the need to address all the conditions conducive to the spread of terrorism and violent extremism http://t.co/BN1B1AWkrF
The idea of a common African fund to combat terrorism was mooted by Mr Kenyatta and would be discussed at the next African Union summit.
More top news
A hacker group who claimed to be behind a cyber attack on Sony Pictures have posted a message online apparently mocking the FBI.
The returns of Benedict Cumberbatch's detective and the X Factor judge were among 2014's most tweeted TV moments in a billion conversations.
A family has issued an appeal to help find their missing pet turkey - in case he gets gobbled up as someone's Christmas dinner.