UK stocks ease as market awaits Brexit deal update

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* FTSE 100 down 0.2%, FTSE 250 down 0.5%

* Markets eye details of Brexit negotiations

* Rio Tinto, Barratt among biggest blue-chip fallers

Oct 16 (Reuters) - London's domestically-focussed mid-cap
index shed almost half of the previous session's more than 1%
gain in early trade on Wednesday, with investors awaiting
confirmation that a Brexit deal is really in the offing.

The FTSE 250, which has rallied more than 3% since
last week on hopes that Britain could clinch a timely divorce
deal, shed 0.5%, with traders eyeing a crunch summit this week
after last-ditch talks between London and the European Union.

The blue-chip FTSE 100 was also marginally lower,
with miner Rio Tinto and housebuilder Barratt
slipping respectively 2% and 2.7% on signs of weakening future
revenue.
(Reporting by Shashwat Awasthi in Bengaluru; editing by Patrick
Graham)