But Morsy is not Mubarak. He was democratically elected. That fact should be respected, his supporters say.
A history of violent crackdowns
In the past year, about 80 people have been killed during protests and other political violence largely attributed to Egyptian security forces, Amnesty International said.
The United States has approved the departure of embassy and consulate employees and their dependents because of the unrest, a senior State Department official said.
The State Department warned Americans to cancel all but essential travel to or within Egypt.
About 200 U.S. Marines in Sigonella, Italy, and Moron, Spain, have been put on alert as a precaution, according to two Obama administration officials.