More than 30 million people are going hungry across the whole of sub-Saharan Africa according to the World Food Programme.
Food aid programmes are underway across the Horn of Africa.
The Horn of Africa is facing an immediate "humanitarian catastrophe" from food shortages following a succession of failed rains, the agency has warned.
But analysts believe many of the food problems facing Africa are more deep-rooted.
Poverty, underinvestment in rural areas, conflict, HIV/Aids and unchecked population growth have all contributed to what amounts to a permanent crisis.
The following aid agencies work throughout sub-Saharan Africa to alleviate hunger.
The United Nations World Food Programme - www.wfp.org - is seeking immediate aid for at least 5.4 million people facing hunger in the Horn of Africa.
Medecins Sans Frontieres - www.msf.org - have launched an appeal for food and medical aid for thousands of displaced persons in the Democratic Republic of Congo.
Oxfam - www.oxfam.org.uk - is providing food aid to over 170,000 people in Kenya.
Islamic Relief - www.islamic-relief.com - is working to alleviate food crises in Niger and Mali.
Save the Children - www.savethechildren.org - have launched appeals to provide food aid to children threatened with hunger in Malawi, Zimbabwe, Mozambique and Zambia.
Anti-poverty organisation Care International - www.care.org - is working to alleviate hunger across Africa. In Malawi, they are running emergency food distribution centres providing more than 127,000 people each month with food and 15,000 farmers with seeds.
Cafod, the Catholic
Agency for Overseas Development - www.cafod.org.uk. - is working to provide food for those still suffering from hunger in Niger.
In 2006, the international Catholic relief and development organisation, Caritas - www.caritas.org - has issued appeals for donations for their work linked to food crises in Kenya, Rwanda and Niger.
UK residents can donate via the British Red Cross - www.redcross.org.uk - who work providing emergency food aid in Malawi, Zimbabwe, Zambia, Mozambique, Swaziland, Namibia and Lesotho.
World Vision - www.worldvision.org.uk - is focusing on food shortages across southern Africa where it is providing emergency needs such as food distribution and livelihood recovery.
Christian Aid - www.christianaid.org.uk - and its partners have launched emergency work to counter the drought in south-eastern Kenya.
Christian charity Tearfund - www.tearfund.org - is working to provide food aid in Zimbabwe and Malawi.
Concern - www.concern.net - has launched a crisis appeal to combat food shortages in Somalia and Kenya.
The United Nations children's organisation, UNICEF - www.unicef.org.uk - has launched a campaign to aid 1.5 million children under threat from severe drought in the Horn of Africa.
You can donate to all the campaigns via their websites.