New Delhi, March 20 -- Facebook owned Instagram made a move into potentially lucrative e-commerce business by adding an option to buy products shown off in posts by selected brands.

Previously, people inspired to buy products featured in Instagram posts had to follow links to outside online shopping sites.

A new checkout button for instant purchasing launched in a beta version of the app in the US with a limited number of businesses, according to the popular image-centric messaging service.

Tapping the checkout button will allow shoppers to select options such as size or colour and then pay for items without leaving the Instagram app.

Information entered for an initial purchase will be stored for future use, according to Instagram....