London shares have continued to slip, in line with other European stock markets, on the eve of the UK parliament's vote on Prime Minister Theresa May's Brexit deal.
The FTSE 100 is down 0.3% to 6,758.91, with the losers led by Barratt Developments, which has fallen 4% to 456p. Top of the winners is mining giant Randgold Resources, which has risen 1.5% to £67.66.
The FTSE 250 has dropped 113 points or 0.6% to 17,731.12. Top of the losers is Thomas Cook, which is down 7.8% to 28.5p as its shares continue to fall after its second profit warning in two months.
The top riser on the index is retirement financial services firm Just Group, which has jumped 18.8% to 96.3p.