- The biggest faller among the FTSE 350 was Petra Diamonds (PDL) after the Tanzanian authorities blocked the export of diamonds from its Williamson mine, triggering a 6.7% drop to 83.8p.

In the FTSE 100, insurance stocks bounced back after Lloyd's of London CEO Inga Beale reassured the market over the impact of Hurricane Irma.

Admiral (ADM) and Direct Line (DLG) were up 1.6% and 1.5% to £18.62 and 388.8p.

The blue-chip index traded 0.5% higher at 7,418.

Brent crude oil fell 0.3% to $53.63 per barrel. Gold was stable at $1,346 per ounce and copper was up 0.4% to $6,680 per tonne.


Primark owner Associated British Foods (ABF) failed to impress the market despite expectations that adjusted operating profit will be well ahead of last year. Shares in the firm ticked 2.4% lower to £31.86.

Pharma firm AstraZeneca (AZN) reported successful results from trials of new lung cancer treatments, boosting the shares by 2.3% to 49.01p. It was welcome news after a previous clinical trial to treat lung cancer failed.

UK supermarket Sainsbury's (SBRY) announced that Jo Harlow will join the Board as a Non-Executive Director with immediate effect, but this failed to move the share price at 237.6p.


Mothercare (MTC) was flat at 99.1p after appointing Interim Finance Director Glyn Hughes as CFO Designate. Hughes used to work for big retailers such as Tesco (TSCO) and Kingfisher (KGF).

On AIM, Mosman Oil and Gas (MSMN) executed a contract to acquire several oil and gas leases that comprise the Welch Permian Basin project in West Texas for $310,000. The good news helped the company rally 16.4% to 1.6p.

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