Libya's eastern-based authorities have seized about 400 kg of hashish worth around 6 million dinars ($934,000) and arrested some suspects near the coastal city of Tobruk, officials said.
Libya has become a major drug transit route as gangs exploit the turmoil and conflict since 2011 when former ruler Muammar Gaddafi was toppled in a NATO-backed uprising.
The anti-drugs agency's information and documentation officer, Ahmed al-Mismari, told Reuters that Saturday's operation took place at a house in an agricultural area southeast of the city.
"The preliminary investigations revealed the shipment had been smuggled across the border with Egypt and was intended for local marketing and distribution within the Libyan market," Mismari said.
The detainees, whose number was not confirmed, were from Libya and Egypt.