Archaeologists have discovered a vast tunnel underneath an ancient Egyptian temple, which they say may lead to the long-lost tomb of queen Cleopatra.
The tunnel, which is at a depth of about 13m (42ft) below the ground, stretching over 1,300m (4200ft) and about 2m (6.5ft) high, was discovered during excavations at a site in the ancient city of Taposiris Magna, west of Alexandria.
