A previously unknown Iraqi Sunni group has claimed responsibility for a car bomb blast at a Baghdad market in which at least 62 people were killed, saying it was avenging Sunnis killed by Shia Muslims. The explosion went off at a crowded market in the poor Shia district of Sadr City at about 10am and scorched many nearby cars. Sources at the interior ministry said the number of deaths had risen to 62 during the morning, with 114 people wounded. Nizar al-Samaraei, an Iraqi journalist, told Aljazeera the market was busy as it was the first day of the week when citizens usually go shopping.A statement by The Supporters of the Sunni People posted on a website regularly used by Iraqi groups said: "Every day the world sees what rejectionist (Shia) militia ... do to the Sunni folk in Iraq with blessing and support from the rejectionist government led by [Nuri] al-Maliki. You have started and here we answer your aggression."