From March 25 to the end of April, scientists conducted archaeological excavations at the western wall of the Luy Lau ancient citadel in the northern province of Bac Ninh, with a total area of about 76sq.m, aiming to explore the historical and cultural values hidden in the citadel.

More than 2,300 pieces of bronze drum moulds were collected during a recent excavation of the Luy Lau ancient citadel in the northern province of Bac Ninh.