A series of blasts disrupted a procession by Shiite Muslims in Dhaka, the capital, killing at least one person and wounding dozens, some seriously, early Saturday during an event on the holy day of Ashura, the police said. The blasts were caused by improvised explosive devices, the police said, and it was unclear who carried out the attack. At least 10 of the wounded were admitted to Dhaka Medical College Hospital, according to a hospital official. Attacks on the Shiite minority have been rare in Bangladesh, which is a predominantly Sunni Muslim country. But in recent weeks, the Islamic State group claimed responsibility for the shooting deaths of an Italian aid worker and a Japanese man in the country, and in the past year there have been several attacks on secular bloggers.