Tanzania’s opposition presidential candidate Tundu Lissu,says police have teargassed his convoy in Nyamongo area, north of the country, as he was heading to a campaign meeting.

He said his supporters were “brutally caned and hurt”.

Tanzanians will head to the polls on 28 October to elect a new parliament and president.

Incumbent John Magufuli is seeking a second five-year term.

Human rights campaigners have said the authorities have stepped up repression of opposition parties, non-governmental organisations and the media.