(The Associated Press | Thurmont, Maryland).  Scores of Ethiopian immigrants are joining a demonstration in Maryland targeting a global economic summit at nearby Camp David.

At least three busloads of flag-waving Ethiopians from the Washington-Baltimore area arrived Saturday morning in the small mountain town of Thurmont.

Thurmont is several miles from the presidential retreat where Ethiopian Prime Minister, Meles Zenawi and three other African heads of state are invited to discuss food security with leaders of the Group of Eight.

Critics say Zenawi’s government represses civil rights and news media. The United States is a major contributor of aid to Ethiopia.

Five Ethiopians in a car say they tried to drive to Camp David but were turned away.

Organizers of the demonstration say they’re planning a midday march in the town of 6,200.