NANNING, April 4 (Xinhua) -- Customs officers and police in the cities of Nanning, Guangzhou and Urumqi have jointly uncovered a smuggling case involving over 1,700 tonnes of solid waste.

The waste, including cables, water tanks and household appliances, was brought from overseas between January and April last year, according to Nanning customs.

The solid waste was sent to Hong Kong, and then taken to Wuzhou city, Guangxi Zhuang Autonomous Region, before delivering to buyers.

Solid waste often contains harmful elements if not properly disposed of.

The State Council issued a plan on solid waste import last July. Since the end of 2017, imports of 24 categories of solid waste have been banned.

The case is under further investigation.