A car exploded here on Thursday near a bus in the Israeli coastal city of Tel Aviv.<br/> <br />At least four people were injured in the blast, which police suspect was an attempt to assassinate an alleged criminal kingpin.<br/> <br />The car is believed to have belonged to the head of an alleged organised crime family.<br/> <br />Israeli police were investigating reports that "someone on a motorcycle either planted an explosive or threw it inside the vehicle".