Police say the vehicle blew up in al-Sadriya district as people bought food ahead of a night-time curfew.
It shattered stalls and left a huge crater in the street, in the heavily populated, predominantly Shia area.
Only the Sadr City bombings in November, which killed more than 200 people, have claimed more lives.
[...]On Saturday, Iraq’s most prominent Shia cleric, Ayatollah Ali al-Sistani, made a new appeal to all Iraqis.
“Everybody knows the necessity for us to stand together and reject the sectarian tension to avoid stirring sectarian differences,” he said.