Tanzania's main opposition party Chadema says its leaders are subject to politically motivated attacks.

It is a continuation of violence against top opposition officials in Tanzania," Tumaini Makene, the Chadema party's spokesperson, told DW.

Freeman Mbowe, Tanzania's leader of the main opposition party, was attacked by unknown assailants late Monday in the capital Dodoma.

"My immediate reaction after hearing the news [of Mbowe's attack] was to tie it to the president of Tanzania and his security apparatus," Lissu told DW from his exiled home in Belgium.

"The leader of the opposition is now not able to hold rallies as planned, he is now not able to speak on the budget proposal which is going to be tabled by the government next week," Daniel El-Noshokaty, Resident Representative for the Konrad Adenauer Foundation's Tanzania office, told DW.