US Secretary of State John Kerry has called for stability in Egypt during his first visit to the country since President Mohammed Morsi was ousted in July.
Speaking at a news conference, he said: "All of Egypt's future will be defined not only by the way the road map is implemented and the way the constitution is formed but by the economic choices and opportunities that are created over there next weeks and months.
He also stressed the need for fair and transparent trials for all Egyptians.
Kerry's visit comes the day before Morsi and 14 other senior Muslim Brotherhood leaders are due to go on trial charged with inciting violence.
More top news
A woman involved in a car crash had to be taken to hospital by helicopter with serious injuries.
Search for missing seven-year-old underway after he was reportedly abandoned in a forest by his parents as "punishment" for throwing rocks.
Shooting of a 400-pound gorilla who grabbed a four-year-old boy after he entered his enclosure sparks public outrage and prompts petition.