UPDATE: Anger as trading in GameStop shares restricted

Amateur investors are responding with outrage after trading platforms curbed buying of shares in the US games firm GameStop and other companies. The moves by Robinhood and Interactive Brokers follow days of frenzied trading that led to massive gains for some stocks. Shares in GameStop dived by as much as 55% after the restrictions. The activity has drawn questions from regulators, who are monitoring trading amid fears of illegal actions. Plus we hear from Cary Leahy about the latest reaction to this story on the US markets.