A car bomb exploded in a crowded market area in a Shiite neighborhood in Baghdad on Tuesday, killing more than 50 people and wounding 75 others, officials said. It was the deadliest such attack in the Iraqi capital in months.

Car bombs and a suicide attacker struck Baghdad and cities to the north and west of the capital on Tuesday, killing nearly 60 people and shattering a recent lull in violence in predominantly Sunni areas while fighting rages in the…