MINSK—Masked police dragged people into vans and fired stun grenades and tear gas to disperse crowds as tens of thousands marched for a seventh straight weekend to demand veteran Belarusian leader Alexander Lukashenko quit.
Protesters chanted “impostor” and “Sveta is our president” as they marched through Minsk and other cities decked out in red-and-white opposition colors. At least 200 people were detained, the interior ministry said.





