Today's inauguration ceremony took place behind closed doors, instead of the customary stadium where presidents have previously been sworn in with pomp and circumstance.
According to the electoral commission, Suluhu Hassan received 98 percent of the vote in Wednesday's election - a result that the opposition Chadema party rejected as a "scam." Since election day, demonstrators have gathered in violent protests that have reportedly been severely suppressed by the country's security forces.
With the internet down for several days, information is scarce, but according to the opposition, several hundred people have been killed. On Saturday, Chadema claimed to have recorded at least 800 deaths.
The government has not commented on the reports of deaths, but denies "excessive use of force" by security forces.
Suluhu Hassan came to power after the sudden death of her predecessor John Magufuli in 2021. Ahead of last week's election, her main challengers had either been imprisoned or banned from participating.
