Overview

• Antônio Petraglia, a retired university professor with Alzheimer’s, was last shown by a location app on the Morro da Urca trail around 5:30 p.m. Sunday after starting a walk at Aterro do Flamengo.
• The fire department was alerted around 8 p.m. via the Humaitá station and continued search operations through the night into Monday morning.
• More than 20 firefighters are deployed with thermal-imaging drones, canine teams, an aircraft and the maritime unit scanning the coastline and sea.
• Teams report five ground sweeps and five aerial overflights across the trail network, forested areas, bifurcations and secondary access points.
• Family members are asking for information, noting he wore black shorts, a gray walking shirt and sneakers, and that he carries a personal-data chain; authorities have not reported finding him.