The news item implies that it is still unknown as to______.

The Taliban have strongly denied that they were responsible for a suicide car bomb attack that destroyed a hospital in eastern Afghanistan. At least 27 people were killed in the blast in Logar province, most of them in the clinic’s maternity ward. Afghan intelligence sources said the bomber detonated his device after being stopped by police. From Kabul, Paul Wood reports.
    With Afghan soldiers and local people still frantically digging through the rubble, a row broke out over who was responsible for the bombing and over the more general issue of civilian casualties. The Taliban denied that they were to blame, saying they didn’t attack civilians. Whoever is behind this is trying to defame the Taliban, said a spokesman. The Afghan Ministry of Health expressed disgust and hatred towards the perpetrators and said the insurgents had reached new depths in targeting a clinic.