Heavy rain is forecast across Ho Chi Minh City and southern Vietnam, with some areas expected to receive more than 150mm as the wet spell could last until October 10.
HCM City aims to treat 90 per cent of its household waste using new technology by 2030 as it accelerates waste-to-energy projects and moves to reduce reliance on landfill.
Hundreds of sea urchins have washed ashore on Nha Trang beach in Khanh Hoa Province, with an expert attributing the phenomenon to rough seas and large waves.
The arrival of cooler air on October 5 brought Hanoi temperatures down to about 22 degrees Celsius, prompting early-morning commuters to add an extra layer.
Hanoi has put 28 new electric buses into service on two routes, replacing diesel vehicles as part of the city's transition towards greener public transport.
Hanoi is piloting greenery on elevated railway pillars, an underpass, a flyover and bus shelters as part of efforts to expand green space in densely built-up areas.
Large numbers of spiny sea urchins have washed ashore on Nha Trang beach in Khanh Hoa Province, prompting authorities to warn swimmers to avoid stepping on them.
A cold air mass moving into northern Vietnam is bringing thunderstorms and heavy rain, with Hanoi's temperatures expected to fall sharply from the early hours of October 5.
Authorities in Hue City are stepping up efforts to remove illegal fishing enclosures that occupy parts of the Tam Giang-Cau Hai lagoon system, Southeast Asia's largest brackish-water lagoon.
Prolonged heavy rain sent water levels in streams in Lam Dong Province's Bao Lam 2 Commune sharply higher, flooding homes and forcing 40 households to evacuate.
A 12kg pig-tailed macaque and 11 other wild animals were handed over by Hiep Binh Ward, Ho Chi Minh City, to forest rangers for care and release into the wild.
Authorities in Quang Tri Province have collected seawater samples for testing after dead fish washed ashore along a 1.5-kilometre stretch of coastline.
Thirty-one rescued wild animals, including two Sunda pangolins and several rare species, were released into the wild at Kon Ka Kinh National Park in Gia Lai Province on October 1.