Britain will provide food for 1.3 million starving Ethiopians, the Government has said.
The famine-hit nation's worst drought for a decade has left hundreds of thousands of Ethiopians hungry and facing starvation in the next three months - the year's driest period.
International Development Secretary Andrew Mitchell announced extra cash for the World Food Programme's work in the country.
He said: "Through no fault of its own, the Horn of Africa is experiencing a severe drought caused by the failed rains.
"Britain is acting quickly and decisively in Ethiopia to stop this crisis becoming a catastrophe. We will provide vital food to help 1.3 million people through the next three months.
"For the response to be effective, we need the most up-to-date, accurate information on the level of need in Ethiopia. The country has made great strides in many areas over the past 30 years and this emergency relief will help to ensure that these gains are not eroded."
Mr Mitchell urged the Ethiopia Government to provide latest numbers of those affected in the country's south so aid agencies could target relief.
The International Development Secretary also unveiled extra help for 329,000 malnourished children and pregnant and breastfeeding mothers to receive treatment.
