The event is part of the “Clean up the World” campaign, which was first initiated by Australia in 1993, and launched annually across the world by the UN’s Environment Programme on the third week of every September.

This year’s “Clean up the World” will include environmental protection activities in every organisation, family and locality in Bac Ninh province.

The Ministry of Natural Resources and Environment also called on ministries and relevant agencies as well as community to pay attention to preserving biodiversity.

The same day, similar ceremonies were held in Ho Chi Minh City and the south central coastal province of Phu Yen in response to the campaign.