David Cameron has signed the Lough Erne declaration, which, according to the government, "focuses on private enterprise, which drives growth, reduces poverty, and creates jobs and prosperity for people around the world."
The G8 countries aimed to reduce corporate tax evasion and the document says member countries must work on closing tax loopholes.
More top news
The 23-month-old continued breathing after life-support was withdrawn and doctors agreed to give him oxygen and water, his father said.
Prince Charles joked about not being able to keep up with his grandchildren.
Ahead of his meeting with Jewish community groups, the Labour leader vows to ensure anti-Semitism is stamped out.