South Korean fighter jets accidentally bombed homes during a live-fire drill with US forces, injuring more than two dozen people on Thursday, Seoul’s military said.

The number of people injured after South Korean fighter jets accidentally dropped bombs on a civilian area on Thursday increased to 15 civilians and 14 soldiers, the country's defence ministry said.

Two South Korean fighter jets accidentally dropped eight bombs on a civilian area during training, injuring at least eight people, officials said.

Multiple people have been injured, two seriously, after South Korea fighter jets accidentally dropped eight bombs over a village in Pocheon, according to local media reports.

The South Korean military said the accident near the North Korean border occurred during training ahead of Freedom Shield, an annual U.S.-South Korea joint military exercise.

The incident took place at 10:04 am (local time), and the Air Force assured that it was investigating the accident. The authorities also apologised for the damage caused to the civilians

Two KF-16 fighter jets dropped eight bombs in a rural area near the North Korean border. Footage showed plumes of smoke and damaged trucks, houses and a church.