New Delhi, March 16 -- As the world gears up to celebrate St. Patrick's Day, the Chicago River was for one more time seen glowing in vibrant green hues as the city opens up its celebrations.

As per a report by the Associated Press, members of the Chicago Journeymen Plumbers Union Local 130 sprayed dye into the water from boats on Saturday.

As the Chicago Journeymen coloured the river in kelly green, thousands of people lined the river and packed bridges. Cheers erupted when the colour was sprayed.

Colouring the Chicago River ahead of St. Patrick's Day celebrations has been a tradition of 63 years now.

The dyeing immediately precedes the annual downtown St. Patrick's Day parade.

The dye is nontoxic. While the river stays bright for se...