GIZA - Two rock-hewn painted tombs have been discovered in the ancient Egyptian necropolis of Saqqara, the country's Cultural Minister Farouk Hosni said Wednesday. The tombs, one of which was intact and contained offering jars and other grave goods, belonged to a senior official called Shendwa and his son, Khonsu, according to the Supreme Council of Antiquities. Both men lived in the Sixth Dynasty, more than 4,200 years ago, the council said in an e-mailed statement, citing Hosni and the country's chief archaeologist, Zahi Hawass. Located 20 miles south of Cairo, Saqqara is best known for the step-pyramid of Djoser, the world's oldest known monument built using dressed stone. Tourism, which accounts for 12.6 per cent of jobs, is one of Egypt's main sources of foreign currency and brought in $10.76 billion in revenue last year, according to the tourism ministry.