A group of suicide bombers stormed a police compound in Jalalabad near Nangarhar governor's office early this morning, touching off a clash with security forces. Hospital source told Pajhwok Afghan News four people were killed and 20 others wounded in the brazen attack, A journalist is among the injured, some of them in critical condition. The governor's spokesman, Ahmad Zia Abdulzai, said the explosion in the Pashtonistan Square of Jalalabad, the provincial capital near the Pakistan border. But he gave no further details.