Clashes between police and protesters have injured dozens in Bangladesh, where strikers are protesting a recent attack on a political rally that killed five people.
Witnesses say at least 20 people were hurt in the clashes Saturday. Police say they arrested at least 40 people.
Towns and cities across Bangladesh have been paralyzed by the strikes.
In the capital, Dhaka, troops barricaded the downtown headquarters of the opposition Awami League as protesters chanted anti-government slogans in the streets.
The main opposition party called the strike after its former finance minister was killed Thursday in a grenade attack on a party rally. No one has claimed responsibility, but opposition leaders accused the government of involvement.
The United States has condemned the attack, and called on Bangladesh to prosecute those responsible.