Pope Leo XIV celebrated Mass in the city of Mongomo, Equatorial Guinea , on Wednesday, with the Vatican estimating that 100,000 people attended the service. The Mass was celebrated at Mongomo's Basilica of the Immaculate Conception, which was consecrated in 2011. Leo , who is on an 11-day tour of Africa, greeted the crowd and the presidential family before the religious service. President Teodoro Obiang Nguema Mbasogo has ruled the country since 1979 — making him the world's longest-serving