A bomb blast in eastern Afghanistan has wounded a leading Islamic cleric, who has spoken out against the ousted hardline Taliban regime on local radio. Cleric Maulawi Mohammad Daud Waqafi has sustained leg injuries in the blast at the gate of his home near the town of Khost, some 150 kilometres (94 miles) south-east of the capital. "Waqafi was hosting a religious radio program," provincial intelligence official Naqeebullah Asmati said. "He was preaching against Taliban policies." The cleric was taken to a coalition military base for treatment. Waqafi's local radio colleague Mohammad Ghafoor Mohibi told AFP the mullah had been warned by Taliban militants to stop broadcasting critical comments before he was targeted. A spate of attacks against clerics who back President Hamid Karzai's administration started in late May, when Maulvi Abdullah Fayyaz was gunned down in the southern province of Kandahar, a former Taliban stronghold.