At least 23 people died in Thailand when a school bus carrying more than 40 students and teachers on a field trip caught fire in the outskirts of the capital Bangkok, police said on Tuesday.

A school bus carrying dozens of students exploded into flames near Bangkok on Tuesday, killing at least 10 people, with 13 others unaccounted for and feared dead, Thai officials said. Most of the people killed or still missing as rescue efforts proceeded Tuesday evening were children and teenagers between the ages of 6 and 16.