AMMAN - A suicide bomber blew himself up on Monday in a central neighborhood of the Syrian capital where major security compounds are housed, according to a Syrian army source. The army source told state television the security forces had killed all the members of 'a terrorist group' in the bustling Rukn al-Din district during a chase after a suicide bomber blew himself up. The source did not say whether there were any casualties but a resident contacted by Viber said the army had sealed off the main streets of the congested part of the capital adjacent to key government installations and embassies.