Asian markets mostly fell Monday as traders track developments in the Ukraine war and diplomatic efforts to bring the crisis to an end. Hong Kong took a pounding after China placed Shenzhen into lockdown, fuelling a rout in the tech sector. Investors are nervously awaiting the Fed’s latest monetary policy gathering, which is expected to end Wednesday with the bank announcing a quarter-point interest rate hike. Oil prices dropped, providing some respite after they soared to a near 14-year high last week, though the commodity remains elevated around $110 and keeping upward pressure on inflation. China has placed all 17 million residents in Shenzhen under lockdown as it battles a flare-up of Covid-19 cases across the country. The selling came after news Sunday that China . . .