Revelers donned ghastly costumes for a weekend Halloween festival in Bangkok, Thailand.

Locals dressed as spooky witches, demonic nuns, and monstrous ghouls for the 'Siam Halloween' event that was held at Siam Square from October 27 to 29.

The shopping and entertainment strip was transformed into a Halloween-themed area decked out in cobwebs, skeletons, and pumpkins as horror fanatics haunted the streets over the weekend.

Seven horror films were screened at the venue, while street food stalls sold exclusive Halloween-themed treats.

Siam Halloween also featured a three-day music festival with more than 100 performers taking the stage.

Organisers said more than 1 million THB (28,000 USD) were given away to attendees with the best costumes.