KARACHI   -  Sindh Chief Minister Qaim Ali Shah condemned the bombing of a bus carrying SUPARCO employees at Hub Chowki on Wednesday. Taking notice of the incident, the chief minister directed the Sindh Police chief to ensure immediate arrest of those involved in the bomb attack. He also directed the health secretary to provide best medical treatment to those injured in the bombing.Meanwhile, IGP Fayyaz Ahmed Leghari directed the DIG (West) to ensure investigation of the bomb explosion on scientific lines. The chief directed him to prepare the sketches of the suspects with the help of victims and witnesses to identify and arrest those involved the bombing. He also directed all DIGs to take extra-ordinary measures to provide security to the people and carry out patrolling and snap-checking in their respective areas.