Belarusian riot police have used water cannon and stun grenades to break up the latest mass protests against President Alexander Lukashenko, writes BBC.

Dozens of protesters were detained during the latest rallies on Sunday. In Minsk, police blasted protesters with coloured water to mark them out for arrest.

Critics of Lukashenko said Sunday saw police use some of the most brutal tactics against protesters since the immediate aftermath of August"s disputed presidential election.

Many opposition activists have been beaten up by police and thousands have been arrested during months of unrest. They are demanding the release of all political prisoners and a free and fair re-run of the election.