Associated Press Map locates key cities in Ethiopia’s Tigray region. Millions of Tigray residents, still largely cut off from the world, live in fear of Eritrean soldiers. (AP graphic) NAIROBI, Kenya — U.S. Secretary of State Antony Blinken in a call with Ethiopia’s prime minister on Thursday expressed “grave concern” about the crisis in the embattled Tigray region and urged “immediate, full and unhindered humanitarian access to prevent further loss of life,” a U.S. spokesman said. There was no immediate comment from Ethiopian officials. The call is the latest this week that wor...