Here are some key statistics on the UK's overseas aid budget:
:: The UK provided a total of £12.1 billion in overseas aid in 2015 - the most recent figure available. It was an increase of 3.7% on the total in 2014.
:: By law, the Government must spend the equivalent of 0.7% of gross national income on overseas aid. This target was met in 2015.
:: A target of 0.7% was first set by the United Nations in 1970.
:: According to figures compiled by the Organisation for Economic Co-operation and Development (OECD), the UK was one of only six major donors that met or exceeded 0.7% in 2015. The others were Sweden (1.40%), Norway (1.05%), Luxembourg (0.95%), Denmark (0.85%) and the Netherlands (0.75%).
:: Of the £12.1 billion spent by the UK in 2015, 63% - £7.7 billion - went direct to specific countries in the form of bilateral aid. The rest took the form of contributions to international organisations, such as the United Nations.
:: The majority of bilateral aid was spent in Africa and Asia. A total of £2.8 billion went to Africa, while £2.1 billion went to Asia.
:: A total of 129 countries received bilateral aid from the UK in 2015.
:: The top 10 countries receiving bilateral aid from the UK in 2015 were:
1. Pakistan: £374 million
2. Ethiopia: £339 million
3. Afghanistan: £300 million
4. Nigeria: £263 million
5. Syria: £258 million
6. Sierra Leone: £218 million
7. South Sudan: £208 million
8. Tanzania: £205 million
9. India: £186 million
10. Bangladesh: £164 million
:: Total day-to-day spending by the Department for International Development for 2015/16 was £9.3 billion. This compares with £117.2 billion by the Department of Health, £58.0 billion by the Department for Education and £35.1 billion by the Ministry of Defence.