Devastated families mourn victims of pre-school attack in Thailand

Devastated families are mourning the loss of loved ones - caused by a merciless pre-school attack in Thailand.

A former policeman is believed to be the man behind a shocking and unprovoked attack that has left at least 37 people dead, including 24 children, at a pre-school in the north of Thailand.

Thailand's King Maha Vajiralongkorn, Queen Suthida and Prime Minister Prayut Chan-o-cha have met survivors of the attack.