* FTSE 100 down 2 pct, mid-cap index falls 6 pct
* UK banks index hits seven-year low, RBS down 25 pct
* Travel stocks, housebuilders among worst hit
* Gold miners rally, Fresnillo touches three-year high
By Atul Prakash and Kit Rees
LONDON, June 27 (Reuters) - Britain's top share index fellagain on Monday as Britain struggled with political and economicuncertainty after last week's vote to leave the European Union.Banks, housebuilders and budget airline easyJet were hit hard.
Some investors took refuge in companies producing gold, asafe-haven asset, with Fresnillo surging 9 percent to athree-year high and Randgold Resources gaining 8.5percent.
The FTSE 100 fell 2 percent to 6,017.17 points by1137 GMT. The domestically focused FTSE 250 index lostnearly 6 percent, reaching its lowest level since late 2014.
"These uncertainties pose significant risks for theinvestment outlook," said Larry Hatheway, chief economist andhead of multi-asset portfolio solutions at GAM.
"Against the backdrop of an already slowing UK economy,Brexit anxiety could precipitate a large enough reduction inconsumer and business spending to tip the UK economy intorecession."
British financial stocks declined the most, with the sectorindex falling 7.7 percent to a seven-year low.Royal Bank of Scotland dropped 25 percent and Barclays 18.7 percent, hit by broker downgrades and by JPMorgan's cutting its rating on all domestic banks.The mid-cap bank Shawbrook plummeted 30 percent.
"The UK's vote to leave the EU will drive tectonic plateshifts in European bank investing. We move to a slowgrowth/modestly recessionary scenario for UK banks," analysts atJefferies said in a note, downgrading RBS to "hold" and Barclaysto "underperform".
Investors seemed to ignore finance minister George Osborne'sassertion on Monday that the British economy remained strong,his first public statement on the Brexit vote.
Shares in easyJet slumped 23 percent to a three-yearlow and were on track for their biggest daily drop in 12 yearsafter it issued a third-quarter profit warning. British Airwaysowner IAG fell 12 percent after Goldman Sachs cut itsshares to "neutral".
"A vote by Britain to leave the EU can hardly help a companylike easyJet, particularly seeing as the fall in the pound willput Britons off travelling overseas. Rain, strikes and theimpact of the EU referendum have all damaged profits," said Nicholas Hyett, equity analyst at Hargreaves Lansdown.
Housebuilders also fell, with Taylor Wimpey,Persimmon, Barratt Developments and BerkeleyGroup all down 16.4 to 20.6 percent.
(Editing by Larry King)