A vehicle loaded with gas exploded and set off an inferno that burned homes and warehouses in Kenya’s capital, Nairobi, early Friday, killing at least three people and injuring more than 270, with the death toll expected to rise. Many residents were likely inside their homes when the fire reached their houses late in the night in the city’s Embakasi neighborhood, said Isaac Mwaura, a government spokesman. The truck explosion ignited a huge fireball, and a flying gas cylinder set off a fire that burned down the Oriental Godown, a warehouse that handles garments and textiles, Mr. Mwaura said. Several other vehicles and businesses were damaged by the inferno, which started around 11:30 p.m. on Thursday. The proximity of the industrial company to residences raised questions about enforcement of city plans. Officials at the county government have been accused of taking bribes to overlook building codes and regulations. At the scene after daybreak, several houses and shops were burned out. The shell of the vehicle believed to have started the explosion was lying on its …