Firms prepare to keep London working

LONDON (Reuters) - Around 100 London companies were testing plans this week to ensure that business does not grind to a halt when the British capital plays host to the world during the Olympic Games this summer.

The "Stress Test" on Tuesday and Wednesday aims to replicate arrangements for the July 27-August 12 Games when companies are being told to encourage staff to work from home or stagger starting times to ease the strain on public transport.