HONG KONG, June 23 (Reuters) - Hong Kong stocks extended losses on Friday, posting their sharpest weekly decline since March as hawkish comments by U.S. Federal Reserve Chair Jerome Powell dampened market sentiment.

** Hong Kong's Hang Seng Index dropped 1.71%, while the Hang Seng China Enterprises Index declined 1.71%.

** The Hang Seng index is down 5.7% this week in a 4-day losing streak, marking its biggest weekly drop since March 10.

** Most sectors fell. Tech giants listed in Hong Kong lost 2.1%, with Meituan falling 2.3%.

** China's mainland financial markets were closed on Friday for the Dragon Boat Festival holiday. Markets will resume trading on Monday, June 26.

** Broader Asian shares slumped toward their worst week in nine months, as a string of hawkish central bank surprises made investors nervous about the economic cost of taming inflation.

** Fed's Powell reiterated his hawkish stance on Thursday and suggested that the central bank had not reached the end of its tightening cycle.

** Overnight, the Bank of England delivered a surprising 50 basis points interest rate hike.

** Hong Kong stocks face external risks from both the U.S. rate hike uncertainties and geopolitical issues, Dang Chongyu, an analyst at Sealand Securities, said in a note.

** "It's too early to say in which month will be the lowest point of the year, as it depends on China domestic policies and external risks," he said.

** The lack of southbound flows via stock connect as mainland investors are away for holidays also contributed to the weakness, analysts say.

** Hong Kong's Cathay Pacific Airways bucked the trend and rose 1.5%, as the carrier forecast its first half-year profit in three years, buoyed by a strong rebound in travel demand and one-off gain from a stake sale in Air China. (Reporting by Summer Zhen; Editing by Rashmi Aich and Varun H K)