BBC
By Nadia Ragozhina
At least 14 polling stations in Bangladesh have been set on fire, including one on the outskirts of the capital, Dhaka.
The wave of attacks comes a day before the country goes to the polls.
On Friday, a busy commuter train was allegedly set on fire, killing four passengers.
Most opposition parties are boycotting the election, in which Prime Minister Sheikh Hasina is set to win a fourth consecutive term.
Police say a prominent opposition politician, Nabiullah Nabi of the Bangladesh Nationalist Party (BNP), and six other party activists have been arrested on suspicion of involvement in Friday’s fire on a commuter train in central Dhaka.