Updated at 1653 GMT

By Sruthi Shankar

Nov 8 (Reuters) -Britain's FTSE 100 fell to a three-month low on Friday, dragged down by homebuilder Vistry following a profit warning, while China-exposed stocks took a hit from lacklustre stimulus updates from Shanghai.

The blue-chip FTSE 100 .FTSE dropped 0.8%, having fallen about 1% earlier to its weakest level since August 8. The index logged its third straight weekly decline.

Shares in Vistry VTYV.L plummeted nearly 16% — the steepest drop among FTSE 100 components — after issuing its second profit warning in a month, citing ongoing cost pressures in its South Division.

That dragged the FTSE 350 housebuilder index .FTNMX402020 to a near one-year low. Peer Persimmon PSN.L recently flagged concerns over escalating costs for 2025 projects.

"Vistry's latest update offered further evidence that build cost inflation is back with a vengeance for the construction sector," said AJ Bell investment director Russ Mould.

"Vistry will have to work hard to rebuild market confidence and unfortunately it seems to be doing so at time when the foundations underpinning the industry as a whole look a bit more shaky."

Meanwhile, stocks exposed to China’s market, such as luxury goods company Burberry BRBY.L and miners Antofagasta ANTO.L, Rio Tinto RIO.L, and Glencore GLEN.L, also saw declines.

China on Friday announced a support package which was intended to alleviate debt burdens on local governments but failed to meet market expectations of a more substantial fiscal boost.

China-focused financial firms, including HSBC HSBA.L and Prudential PRU.L, also dropped 3.6% and 4.3%, respectively, amid ongoing concerns over China's economic recovery.

The developments in China capped a volatile week that included a surge on Wall Street following Republican Donald Trump's return to the U.S. presidency, alongside interest rate cuts by both the Federal Reserve and the Bank of England on Thursday.

The midcap FTSE 250 index .FTMC slipped 0.6% on Friday but logged weekly gains of about 0.8%.

British Airways owner IAG ICAG.L jumped 7.2% after its third-quarter operating profit beat forecasts, as growth on its lucrative transatlantic routes helped it outperform rival airlines.

Reporting by Sruthi Shankar in Bengaluru; Editing by Tasim Zahid and Angus MacSwan

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