Thailand observed the annual Loy Krathong Festival on Monday. People release lanterns into the sky in Chiang Mai and set afloat lotus-shaped rafts in Bangkok to evict the bad, and welcome the good spirits. /VCG Photo

Loy Krathong Festival takes place on the twelfth full moon night of the Thai calendar, which usually falls in November. /VCG Photo

At the festival, Thai people float Krathong (tiny vessels made of folded banana leaves) on riverways to pay respect to the Goddess of the River. /VCG Photo

This year, in an attempt to prevent disruptions in the Thai skies for aircraft, the Bangkok Metropolitan Administration issued stern warnings against floating or flying objects unless given official permission. /VCG Photo