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
Kristi Loyall had her foot amputated after she was diagnosed with cancer, but since then her Instagram account has been an inspiration.
Sue Peckitt, 65, didn't like the taste of the drink she bought in Ealing so decided to get rid of it.
Libyan dissident Abdel Hakim Belhaj claims he and his wife were victims of a secret rendition in a joint MI6/CIA operation.