Britain's FTSE 100 stock index fell 2.2 percent to 10,540.78 points, marking its worst session since mid-March, Reuters reports. The mid-cap FTSE 250 also fell 1.2%. The negative dynamics were part of a global sell-off in stocks, triggered by investor concerns about a possible tightening of regulation in the field of artificial intelligence after the Democratic victory in the US Congress.

Britain's FTSE 100 stock index fell 2.2 percent to 10,540.78 points, marking its worst session since mid-March, Reuters reports. The mid-cap FTSE 250 also fell 1.2%. The negative dynamics were part of a global sell-off in stocks, triggered by investor concerns about a possible tightening of regulation in the field of artificial intelligence after the Democratic victory in the US Congress.