President Hakainde Hichilema’s lead in Zambia’s presidential election has grown, with partial results from roughly 71% of constituencies showing him at about 62% of the vote, up from 59% a day earlier. His closest rival, Brian Mundubile, fell to 36% from 39%. Because Zambia requires a candidate to win more than 50% to avoid a runoff, Hichilema’s widening margin reduces the prospect of a second round. Analysts had favored Hichilema, 64, citing incumbency advantages and a divided opposition, despite strong turnout at Mundubile’s rallies. The election unfolded amid concerns about political freedoms, with Zambian police arresting several senior opposition figures on election night over allegations that they posed a security threat.