An aircraft carrying 175 passengers and six flight attendants has veered off the runway and crashed into a fence in South Korea, the Yonhap news agency reported on Sunday.
Yonhap said 23 casualties had been reported so far and that rescues were underway from Jeju Air flight 2216 from Bangkok.
Large plumes of smoke could be seen rising into the sky in early unverified images emerging on social media.
Emergency services received the call at Muan international airport in South Jeolla Province at around 9am.
