Egyptian Nobel laureate Mohamed ElBaradei announced on Thursday he was returning to Egypt to join the protests. "Tomorrow is going to be, I think, a major demonstration all over Egypt and I will be there with them," he said. Mr Baradei, who won the Nobel peace prize for his work as head of the UN's nuclear agency, called on Mr Mubarak to leave office, saying "he has served the country for 30 years and it is about time for him to retire."