An Israeli air strike hit the al-Asala building in Gaza City's Remal neighbourhood early Saturday, killing at least five people and severely wounding six others. No prior warning was given. The attack came in the middle of the night while residents were asleep, according to Al Jazeera's correspondent Hani al-Shaer reporting from Khan Younis. Three consecutive strikes penetrated the targeted apartment and tore through the floors below, causing destruction throughout the multi-storey building. Fires burned for at least an hour before Palestinian Civil Defence crews managed to extinguish them. Al-Shaer described the scene as "horrific," with people buried under rubble as they slept. Al-Shifa Hospital confirmed the dead included four women, among them an elderly Christian woman and her daughter. The six wounded were transported to al-Shifa for treatment. Civil defence crews continued searching the site for missing people and bodies even as Israeli drones maintained presence overhead and fighter jets flew low across the Strip. Remal is one of Gaza City's most crowded residential areas, now housing thousands of displaced people sheltering in makeshift camps across the neighbourhood. The density of the area and the absence of advance warning meant residents had no opportunity to evacuate — a pattern that has defined much of the air campaign's impact on civilian life. The strike fits a now-familiar operational pattern: precision munitions hitting residential infrastructure in densely populated zones without prior evacuation notice, resulting in civilian casualties concentrated among women, children, and the displaced. Each such strike further degrades what remains of Gaza's housing stock and medical infrastructure, with al-Shifa Hospital — itself previously targeted — receiving the wounded. The broader trajectory is one of compounding fragility. Each strike on residential buildings reduces available shelter for a displaced population already compressed into shrinking safe zones. Medical capacity at receiving hospitals operates under sustained overload. Civil defence response times are extended by ongoing aerial presence, and the rubble-search process is conducted under active drone surveillance. The absence of warning in a neighbourhood this dense is the core structural fact. Remal is not a peripheral area — it is central Gaza City, packed with displaced families with nowhere else to go. The strike's penetration through multiple floors of a residential building while residents slept defines the cost distribution: military objectives, whatever they were, are borne entirely by the civilian population in the immediate blast radius.