Sheikh Hasina Wajed was been sworn in for her second spell as prime minister of Bangladesh.
She took the oath at the presidential palace in Dhaka on Tuesday in a ceremony that was broadcast live on television.
Mrs Hasina was previously prime minister between 1996 and 2001.
Her Awami League party won a landslide victory in general elections last week that were hailed as "free and fair" by independent observers. They were the first elections to be held since 2001.
Polls were cancelled in 2007, when at least 35 people died before the army stepped in.
The Awami League last week won 230 seats out of a possible 300, enabling it to govern without forming a coalition. Voter turnout was 87%.