The United States Embassy in Algeria has warned about a possible attack by a "terrorist group" on targets in Algiers, possibly near a U.S.-branded hotel in the capital.

A statement on the embassy website told embassy employees to avoid hotels owned or operated by U.S. companies on the July 4 U.S. Independence Day and Algerian Independence Day on July 5.

The warning posted on Wednesday was one of several U.S. security alerts about possible attacks by radical groups.