Archaeologists say they have found a gold leaf-covered mummy sealed inside a sarcophagus that had not been opened for 4,300 years.
The mummy, the remains of a man named Hekashepes, is thought to be one of the oldest and most complete non-royal corpses ever found in Egypt.
It was discovered down a 15m (50ft) shaft at a burial site south of Cairo, Saqqara, where three other tombs were found.
The largest of the mummies that were unearthed at the ancient necropolis is said to belong to a man called Khnumdjedef - a priest, inspector and supervisor of nobles.
Another belonged to a man called Meri, who was a senior palace official given the title of "secret keeper", which allowed him to perform special religious rituals.
A judge and writer named Fetek is thought to have been laid to rest in the other tomb, where a collection of what are thought to be the largest statues ever found in the area had been discovered.
Archaeologist Zahi Hawass, Egypt's former antiquities minister, has said all the discoveries date from around the 25th to the 22nd centuries BC.