- Most stock markets in the Gulf ended lower on Sunday, with the Dubai index leading the downward trend as surging cases of the Omicron coronavirus variant rattled investors. The risk of reinfection with Omicron is more than five times higher and it has shown no sign of being milder than the Delta strain, a study showed, as cases soar across Europe and threaten year-end festivities. read more Saudi Arabia"s benchmark index (.TASI) retreated 1.3%, hit by a 1.6% fall in Al Rajhi Bank (1120.SE) and a 2.6% decline in petrochemical maker Saudi Basic Industries Corp (2010.SE). The kingdom"s air defences on Sunday destroyed two drones launched by Yemen"s Houthis toward Abha international airport in the southwest of the country, the Saudi Press Agency (SPA) reported. read more Violence in Yemen"s conflict has escalated dramatically over the last few months despite efforts by the United States and the United Nations to engineer a ceasefire in the seven-year-old war, which has caused a dire humanitarian crisis. read more Dubai"s main share index (.DFMGI) slid 3.6%, dragged down by a 4.2% drop in top lender Emirates NBD Bank (ENBD.DU) and a 4% decline in blue-chip developer Emaar Properties (EMAR.DU). Crude prices, a key catalyst for the Gulf"s financial markets, settled down $1.50, or 2%, at $73.52 a barrel on Friday. Global stock benchmarks also fell on Friday as investors wrestled with rising numbers of Omicron cases and a hawkish turn from major central banks in the fight against inflation. MKTS/ In Abu Dhabi, the index (.ADI) lost more than 2%, with the country"s largest lender First Abu Dhabi Bank (FAB.AD) dropping 3.1%. Outside the Gulf, Egypt"s blue-chip index (.EGX30) slipped 0.9%, as most of the stocks on the index finished in the red. Egypt, the Arab world"s most populous country, reported its first three cases of Omicron, Reuters reported on Friday, citing the health ministry. read more ** Markets in Qatar and Bahrain were closed for a public holiday. SAUDI ARABIA (.TASI) lost 1.3% to 11,160 ABU DHABI (.ADI) fell 2.3% to 8,651 DUBAI (.DFMGI) down 3.6% to 3,157 EGYPT (.EGX30) fell 0.9% to 11,566 OMAN (.MSX30) rose 0.3% to 4,043 KUWAIT (.BKP) eased 0.6% to 7,501 Reporting by Ateeq Shariff in Bengaluru Editing by Mark Heinrich Our Standards: The Thomson Reuters Trust Principles.