Protests have erupted for a second night in the Iranian city of Sabzevar, as residents took to the streets over prolonged electricity and water outages during a record-breaking heatwave. Security forces reportedly fired tear gas to disperse demonstrators, who chanted “no water, no power”, while temperatures soared above 48°C, according to Iranian media reports. The unrest highlights growing infrastructure stress as Iran faces its hottest summer in decades. Officials declared a public holiday on Tuesday in Tehran and at least 10…