Hosni Mubarak has stepped down as president of Egypt, after weeks of protest in Cairo and other cities.
The news was greeted with a huge outburst of joy and celebration by thousands in Cairo’s Tahrir Square – the heart of the demonstrations.
Mr Mubarak ruled for 30 years, suppressing dissent and protest, and jailing opponents.
US President Barack Obama said that Egypt must now move to civilian and democratic rule.
This was not the end but the beginning and there were difficult days ahead, the US president added, but he was confident the people could find the answers.
“The people of Egypt have spoken, their voices have been heard,” Mr Obama said. “Egypt will never be the same again.”
“They have made it clear that nothing less than genuine democracy will carry the day.”