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* GSK down after it raises $1.5 bln from offloading Haleon stake

* Landsec down; co posts smaller annual loss as market recovery gathers pace

* FTSE 100, FTSE 250 off 0.3%

May 17 (Reuters) - London stocks fell on Friday, tracking weakness in global markets after U.S. Federal Reserve officials indicated interest rates may stay high for longer, while GSK slipped after selling is remaining stake in consumer healthcare firm Haleon.

The blue-chip FTSE 100 index slid 0.3% and was also set to snap three weeks of gains. The midcap FTSE 250 index was also down 0.3%.

The pound traded slightly lower against the dollar at $1.2653.

"London market is taking a lot of its lead from global markets. A decent U.S. inflation print, various Fed officials coming out and trying to send a higher for longer message on rates," said Richard Flax, Chief Investment Officer of Moneyfarm.

"If you were hoping for signs of resilience in the global economy, the message is a little bit more downbeat on the margin than you might have hoped."

Fed officials' baseline outlook remained for inflation to fall after the softer-than-expected inflation data, but they didn't trust it fully after three months in which inflation data disappointed.

Traders are pricing in about 47 basis points of easing this year from the Fed, with a rate cut in November fully priced in, and a possibility of around 60 bps of cuts by the Bank of England in 2024 with the first in August.

Comments from BoE's monetary policy committee member Catherine Mann later in the day will be on the radar for clues on the timing of the easing in borrowing costs by the UK central bank.

Among individual stocks, Auto Trader Group slipped 4.7% to the bottom of FTSE 100 after Morgan Stanley cut rating and target price on the stock.

Land Securities Group fell 1.7% as the commercial property firm posted a narrower annual loss, although elevated interest rates continue to weigh on the valuation of its buildings

GSK slid 1.0% after the drugmaker raised 1.25 billion pounds ($1.52 billion) from selling its entire remaining stake in consumer healthcare firm Haleon, whose shares also slid 0.3%. (Reporting by Shubham Batra in Bengaluru; Editing by Nivedita Bhattacharjee and Varun H K)