They were caught by police and a crowd of civilians while carrying out the skulls of two mummies and two statues estimated to be more than 2,000 years old.
One statue, believed to be of Tutankhamun, was broken into two pieces by the thieves, although officials said they hoped to be able to repair it.
Zahi Hawass, chairman of the Supreme Council of Antiquities, said: ‘They tried to attack and rob from the showcases of King Tut, but they failed. These people are criminals, they are not true Egyptians. The nine men were caught carrying skulls and two statues, one of which was broken. "