PESHAWAR At least four persons were killed and 25 others got injured when a suicide bomber blew himself up in front of the main gate of Peshawar Press Club on Tuesday. Police sources and eyewitness informed that the suicide bomber tried to enter the press club building but detonated his explosive-laden jacket when Riaz-ud-Din, police constable, intercepted him at the main gate. The blast occurred at 11:35 a.m. and its intensity was so severe that the front gate, boundary wall and windowpanes of the press club building were damaged. Soon after the blast, rescue teams and Edhi ambulances rushed towards the site and shifted the injured and the dead to Lady Reading Hospital. Police and bomb disposal squad cordoned off the area and collected evidence from the site. Chief of Capital City Police Liaqat Ali Khan said that the suicide bomber was about 18 to 20-year-old. He said the bomber was carrying some eight kilograms explosive material and his actual target was Peshawar Press Club. The deceased included Constable Riaz-ud-Din and an audit officer Rubina wife of Ghulam Ghaus resident of Yakatoot. The injured included Abdul Nabi son of Marjan, Abdul Rahman son of Gul Khanan, Abid Naveed son of Ghulam Chouse, Amjad Khan son of Qasim Khan, Asif son of Gul Rehan, Orangzeb son of Bashir-ul-Haq, Ayub son of Yousaf, Fayaz son of Mohammad Afzal, Haq Nawaz son of Abdul Ghafoor, Imran Khan son of Muhammad Nawaz, Kamran son of Hayatullah, Meher Negar wife of Iqbal, Mian Iqbal Shah, Minhaj son of Mohammad Shoaib, Mohammad Saeed son of Abdul Rasheen, Mohammad Sharif son of Manshah Khan, Nasir Jamal son of Nisar Ahmad, Naseem Gul son of Arif Gul, Qadir Gul son of Jumma Gul, Anees Khan son of Jumma Gul and Yasir Jamil son of Fazal Subhan. Most of the injured were passers-by while four of them were working with the press club. One of these four, Accountant Mian Iqbal Shah, was stated to be in critical condition and was admitted in Intensive Care Unit of Lady Reading Hospital. Meanwhile, President Asif Ali Zardari, Prime Minister Syed Yousuf Raza Gilani, NWFP Chief Minister Ameer Haider Khan Hoti, Governor NWFP Owais Ahmad Ghani, Pakistan Tehreek-e-Insaf Chairman Imran Khan, Pakistan Peoples Party (Sherpao) President Aftab Ahmad, Federal Minister for Communication Dr Arbab Alamgir Khan and Central President of Pakistan Muslim League (likeminded) Saleem Saifullah strongly condemned the blast and said that sacrifices rendered by journalist community and police would be written in golden words. They expressed sympathies with the bereaved families and prayed Allah Almighty to shower His blessings on the departed souls. CM Hoti immediately ordered a probe into the blast. He expressed sorrow and solidarity with the journalist community over the incident and said the operation against terrorists would continue till their complete elimination. Later, the Chief Minister visited the press club. Speaker NWFP Assembly Karamatullah Chagharmati and NWFP Minister for Information Mian Iftikhar Hussain were also present on the occasion. Agencies add: A suicide bomber Tuesday attacked Peshawar Press Club, killing four people and wounding 25 others in an unprecedented assault on the media. Strapped with explosives packed with nails, a young man walked up to the gate of the press club and blew himself up as policemen tried to stop him entering the building, officials said. I was coming out of the canteen when I suddenly heard a huge blast. Smoke engulfed the building immediately and when I reached the spot, I saw human organs littered on the ground, said a journalist Nisar Mohammad Khan. The force of the explosion blew out the windows at the press club, damaged the guard hut and ripped through nearby vehicles, said witnesses. One photographer identified the bomber as a teenager with a fledgling beard. A doctor at Lady Reading Hospital said four people were killed by the blast including a policeman, a press club employee and a woman while 25 others were wounded. Police said four journalists were among the wounded. Bomb disposal squad chief Tanveer Ahmed said most of the casualties were caused by steel pellets and nails stuffed in the suicide bombers vest. The press club declared three days of mourning, but journalists vowed to continue their work despite mounting threats from militants who have carved out fiefdoms across swathes of the northwest. The press club was already receiving threats and warning letters - journalists here are practically working in a war zone, said the clubs president, Shamim Shahid. The role of the media is even more important in this situation. We will continue our role and will tell the truth in any case, he told AFP. Fayaz Aziz, a photographer, said local papers had received threats from the Taliban complaining about their coverage. Militants are not happy with us, they are unhappy because the newspapers called them 'terrorists... they want us to write 'Taliban, he said. Head of the bomber was found from the site. Havaldar Riaz Khan and a woman Robina were among the dead. Press club employees: Ayub Khan and Kamran, head constables Minhaj and Muhammad Saeed, and constable Muhammad Faheem and club accountant Mian Iqbal Shah were among the injured. According to bomb disposal squad, 8 to 12 kilogram explosive material was used by the bomber. The Provincial Labour Minister was scheduled to hold a press conference at the club later Tuesday. Global watchdog Reporters Without Borders rates Pakistan as one of the most dangerous countries for journalists and says five reporters have been killed this year, although it is unclear if militants or others were responsible. Militant attacks have killed more than 2,700 people since July 2007.