WASHINGTON (Reuters) - The U.S. State Department urged Egypt's interim government on Wednesday to respect the right of peaceful assembly, after Cairo's new leaders said vigils by supporters of deposed President Mohamed Mursi threatened national security and were no longer acceptable.

"We have continued to urge the interim government to respect the right of peaceful assembly," deputy spokeswoman Marie Harf told a regular daily briefing. "That obviously includes sit-ins."

(Reporting by Susan Cornwell; Editing by Vicki Allen)