Botswana’s President Mokgweetsi Masisi conceded defeat today as preliminary results showed his ruling party lost its parliamentary majority after nearly six decades in power. This announcement came before the final results were announced, with his Botswana Democratic Party (BDP) trailing in fourth place, according to tallies by the electoral commission.

According to results released on state television, the main opposition party, the Umbrella for Democratic Change (UDC), had won 32 seats based on results from 55 of the 61 constituencies. Under the country’s electoral system, the first party to secure 31 of 61 seats in the legislature will be declared the winner. The BDP has governed the diamond-rich Southern African nation since 1966.