A picture taken with a slow shutter speed shows steam from cooking pots filling the air at the food stalls of the Kwangjang Market in Seoul, South Korea, 28 December 2016 (re-issued 16 June 2025). The International Gastronomy Day, also known as Sustainable Gastronomy Day, is celebrated on 18 June. It was established by the United Nations (UN) to raise awareness about the importance of sustainable food and the connection between food, culture, and the environment. It promotes local production, reduction of food waste, and diversity of food traditions and culinary practices around the world. EPA/YONHAP SOUTH KOREA OUT *** Local Caption *** 53187879 
The incident took place at a market located in Bucheon, about 20 km (12.43 miles) west of the capital Seoul, a fire official told a televised briefing.
Two people who had suffered cardiac arrest were later confirmed to have died, the Yonhap News Agency said.
The truck appeared to reverse for 28 metres before accelerating towards the outdoor market, the fire official said.
The driver had blamed a sudden surge of acceleration for the incident, he said.
The driver was not intoxicated when tested for alcohol, a police official said at the briefing.
Authorities would hand the vehicle over to investigators to try to determine the cause of the crash, the official said.
CCTV footage aired on Korean television showed shoppers going about their business at an outdoor market before a blue truck accelerated along a passageway lined by stalls and crashed into one of the stores.
Police had arrested the driver who was in his 60s and he was being questioned, Yonhap said.
(Reporting by Jack Kim and Heejin KimEditing by Ed Davies)