<span style="color: #222222;">A Taliban suicide bomber and several gunmen attacked a police headquarters in northern Afghanistan today, killing at least four people and wounding 40 more.</span><br />'' <br />'' <span style="color: #222222;">According to government officials, the attack occurred two days after President Ashraf Ghani offered the Taliban a ceasefire during the holy month of Ramadan, which begins on Monday.  </span><br />'' <br />'' <span style="color: #222222;">Sunday's attack started with a massive blast at the police facility in Pul-i-Khumri, about 250 kilometres north of Kabul, sending a huge plume of smoke into the sky.</span><br />'' <br />'' <span style="color: #222222;">The explosion was followed up by gunmen storming the police compound. </span><br />'' <br />'' <span style="color: #222222;">Interior ministry spokesman Nasrat Rahimi said "two terrorists were gunned down in the attack, while the rest of the attackers were besieged by the Afghan forces. </span><br />''  <br />