Human rights groups: At least 400 missing in Libya

More than 400 people have gone missing in east Libya since the uprising against Muammar Gaddafi began six weeks ago.

Many are feared killed or captured by government forces, according to human rights officials.

In Benghazi alone more than 120 posters adorned the walls and entrance gate of the hospital.

At least four showed men in military uniform.

Human rights workers say the numbers also include four Libyan doctors and three journalists.