( CNN ) -- An explosion at a restaurant in downtown Djibouti killed three people and injured several more , according to a Ministry of Health official and a doctor at a local hospital . The two sources , who do not want to be named , confirmed three people died and an unknown number of others were wounded . The sources do not believe it was a suicide bombing . The Ministry of Health official confirmed that the restaurant where the attack occurred is La Chaumiere , a popular restaurant among Westerners who visit the small Horn of Africa nation . Both sources confirmed that foreigners were among the dead , but they would not give specifics on nationalities . The U.S. Embassy is Djibouti issued an alert to Americans following the attack at the busy restaurant . The alert advises citizens to `` exercise heightened security measures . '' It also recommends Americans to `` limit movements , avoid areas frequented by Westerners , implement additional personal security measures , and review personal crisis response plans . '' CNN 's Shelby Lin Erdman contributed to this report .
Sources do not believe it was a suicide bombing . A Ministry of Health official confirms foreigners are among the dead . The U.S. Embassy in Djibouti issues a security alert .