KAMPALA, Uganda—Presidential applicant Bobi Wine mentioned he was below siege following soldiers stormed his residence on Friday, boosting fears of large-scale street protests when the effects of Uganda’s election are declared on Saturday.

“The army has jumped over the fence and has now taken handle of our residence,” Mr. Wine reported on his formal Twitter account. “We are in serious trouble.”

A Ugandan police spokesman claimed Mr. Wine’s household in Kampala had been surrounded by protection forces to reduce him from inciting violence.

Early final results printed by Uganda’s electoral commission on Friday confirmed President Yoweri Museveni taking an early direct, but Mr. Wine reported before on Friday that the polls were being falsified and that he was self-confident of victory. “I am extremely assured that we defeated the dictator by considerably,” he reported.

Ugandans voted on Thursday amid heightened protection and an online shutdown just after a hotly contested and violent race in which Mr. Wine, a youthful rapper-turned-lawmaker is making an attempt to unseat Mr. Museveni, 1 of Africa’s longest-serving leaders. The contest embodies a generational clash throughout Africa, exactly where entrenched more mature leaders are grappling with more and more restless youthful populations demanding improved financial prospects.