Sarah Obama, the grandmother of former US President, Barack Obama has died.

Mama Sarah, as she was fondly called, passed away around 4am on Monday while receiving treatment at the Jaramogi Oginga Odinga Teaching and Referral hospital in Kisumu.

Her daughter Marsat Onyango said her mother had been in poor health for some time.

She was the third wife of President Obama’s paternal grandfather.

According to multiple reports Mama Sarah had taken up an initiative to care for destitute children as well as helping the widows in Siaya’s Kogelo village.

Meanwhile the cause of death is yet to be revealed.