The FTSE 100 was down 0.3% by midday, a better showing than other European markets, as the collapse of cross-party Brexit talks put the pound under pressure and helped prop up the index.

Weakness in sterling boosts the relative value of the overseas earnings which dominate the index and help take the sting out of the negative sentiment created by deteriorating US-China trade relations.

Takeaways firm Just Eat slumped 7.9% as it emerged overnight that Amazon had been the major investor in rival Deliveroo's latest funding round.

LARGE AND MID CAP RISERS AND FALLERS

EasyJet gained 2.1% despite delivering a wider first-half loss, as it more-or-less stuck to its annual guidance amid a challenging time for travel companies.

Software company Sage fell 0.9% as it booked a slight fall in first-half adjusted earnings, after rising sales were offset by weaker margins.

Restaurant Group dipped 1% despite revenue jumping 57% in the year to date, owing to its recent acquisition of Wagamama, new site openings and a 2.8% improvement in like-for-like sales.

Metro Bank jumped 18.8% after it raised £375m from a discounted placing of its shares, exceeding its £350m target and helping to cool concerns about the challenger bank's financial health.

Investment firm IntegraFin gained 1.1% as it declared a maiden interim dividend as its first-half profits grew by nearly a fifth.

Cairn Energy shed 0.9% on reiterating its annual production guidance.

Publishing firm Future gained 15% as acquisitions helped it post a record set of first half numbers with revenue more than doubling to £108.7m.

SMALL CAP RISERS AND FALLERS

Recruitment and training company Staffline tumbled 53% as it warned on profits, blaming Brexit uncertainty and the delayed release of its annual results for hurting demand.

Online marketing minnow for the gambling sector Veltyco dropped 32.8% after it warned of a first-half loss.