Kenyan media say a boat carrying a local politician and his family capsized in the Indian Ocean and that many of the dozen occupants are missing.

Rescuers on Monday searched for the vessel, which sank off coastal Lamu County amid reports of high tides.

The Standard newspaper quotes county commissioner Joseph Kanyiri as saying one body was found.

Some Kenyan media outlets say Shekuwe Kahale, a politician affiliated with Kenyan opposition leader Raila Odinga, was on the boat but survived.

Odinga said last week's presidential election, won by President Uhuru Kenyatta, was rigged. Kenyan election officials and international observers say the vote was free and fair.