A suicide bomb and grenade attack has killed at least 22 people and injured about 55 people at a political rally in the eastern Iraq city of Baquba.
A grenade was thrown into the crowd gathered in a large tent. Seconds later, a suicide bomber blew himself up in the same tent.
In the recent weeks, more than 11 candidates standing in this month's political election have been shot dead.
Polls in two provinces have been postponed for security concerns.
But the attack have not stopped, and it has affected the candidates in other provinces, the BBC correspond reported in Baghdad.
Opposite figures accused the government of delaying elections out of fear that anti-government candidates will sweep to victory, our reporter said.