Looks like an initial strike against a police station, followed up by a second attacker targeting responders and onlookers at the site of the first blast. From the BBC:
Three blasts have rocked the Iraqi city of Ramadi, west of Baghdad, killing at least 23 people and wounding several others, police have told the BBC.
A car packed with explosives ploughed into a concrete wall at the police headquarters. A motorcycle bomb then went off among the crowd that gathered.
The third blast, an apparent car bomb, went off outside a hospital. A curfew has been imposed in Ramadi, capital of Anbar province, which was once a centre of the Sunni insurgency.