25 years after 9/11, Houthi gains in Yemen, Measles outbreak, and more: The Week in 5 Charts

(1) Building in Delhi collapses, killing at least sevenThe death toll in a building collapse in Delhi rose to seven on Monday last week (September 7, 2026), following the incident a day earlier. The building, operating as a Paying Guest accommodation, collapsed after a load-bearing wall was disturbed during renovation work in the basement, as per the Municipal Corporation of Delhi.The incident put the spotlight on a long-standing crisis of inadequate student housing in the city, which is home to the Delhi University and its attached colleges among other well-known institutions. Besides this issue, attention also turned to unauthorised construction and modifications of residential buildings into PGs and MCD’s lack of regulation.The MCD identified over 2,000 PGs in the city, housing between around 50,000 occupants. On a demolition drive in the past week, it took action against buildings in the city with violations. A map showing locations in Delhi where recent demolitions of unauthorised constructions were done (2) 9/11: 25 Years OnTwenty-five years after the events of September 11, 2001, the terror attacks remain one of the defining events of modern American history, reshaping the country and its place in the world.On that nearly cloudless morning, 19 Al-Qaeda operatives hijacked four passenger planes. Two crashed into the World Trade Center’s Twin Towers in New York, bringing down the iconic 110-storey buildings. A third struck the Pentagon, while a fourth crashed into a field near Shanksville, Pennsylvania, after passengers fought back.Nearly 3,000 people were killed in the attacks. The events triggered the U.S.-led invasion of Afghanistan, where Al-Qaeda’s leadership was based, and ushered in decades of war while fundamentally changing how the world confronted terrorism.Click here to read the visual story, which traces how the events unfolded in the U.S. on September 11, 2001(3) Measles outbreak expandsBangladesh has reported over 60,000 cases between February to July this year, with the death toll reaching 999 by Tuesday last week (September 8, 2026), according to the government’s Directorate General of Health Services. Bangladesh has reported the highest number of cases, above Guatemala and India.This is a reversal of Bangladesh’s previous containment of the disease. Between 2021 and 2025, the country recorded just 100 to 300 cases per year, down from 2,410 cases in 2020. The recent uptick is attributed to a setback to the country’s measles vaccination program, including a missed vaccination in 2024. This was the year when the government was in turmoil following former Prime Minister Hasina’s ouster.On the other hand, in India, measles cases are relatively lower, at around 20,000. However, compared to previous years, this year’s case numbers at the half-year mark are higher than the previous years’ full-year totals.(4) Yemen’s Houthi rebels seize more key islands in southern Red SeaYemen’s Houthi rebels have captured two strategic islands in the southern Red Sea, further strengthening their control over a major maritime shipping route.The rebels deployed fighters on Greater Hanish and Lesser Hanish, located about 160 km (100 miles) north of the Bab el-Mandeb Strait, according to two Yemeni government officials and a Houthi official.The Houthis seized the islands after hundreds of government-allied forces withdrew from the archipelago, the officials said. They spoke on condition of anonymity because they were not authorised to speak to journalists.The latest capture came a week after the Houthis seized the port city of Mokha and the island of Mayun, which lies inside the Bab el-Mandeb Strait, from Saudi-backed Yemeni government forces.The conflict intensified on Sunday (September 13), as government forces launched attacks against Iran-backed Houthi rebels along the Red Sea coast, while the Houthis fired into neighbouring Saudi Arabia, which supports Yemen’s government.The Yemeni government has vowed to send additional forces to the Red Sea coast. One government official described the capture of Mokha and Mayun as a “painful” defeat.The Bab el-Mandeb is a crucial maritime chokepoint linking the Red Sea with the Gulf of Aden and is an important shipping route between Europe and Asia.(5) Apple launches its first-ever foldable phoneApple on Wednesday (September 9, 2026) launched its first-ever foldable smartphone, the iPhone Duo, entering a segment dominated by Samsung and Google.The iPhone Duo features Apple’s Liquid Glass design and runs iOS 27 out of the box. It has a 5.4-inch cover display, with Touch ID integrated into the side panel and speakers positioned at the top and bottom. The phone uses Grade 5 titanium for durability, along with Ceramic Shield on the back and Ceramic Shield 2 on the front.The foldable supports tent mode and allows two apps to run side by side. When unfolded, it features a 7.6-inch OLED main display with a peak brightness of 3,000 nits.Apple claims up to 31 hours of battery life when using the main display and up to 44 hours on the cover display. The phone also supports fast charging.Powered by the A20 Pro chip, the iPhone Duo starts with 256GB of storage. It has a 48MP main camera and a 48MP ultrawide camera, along with a 12MP front camera on the cover display and an under-display FaceTime camera on the main screen.The iPhone Duo will be available in Star White and Night Sky. It starts at $1,999 in the U.S. and is priced at ₹2,99,900 in India, where it will go on sale from October 23.