Two persons moving around in a suspicious manner near a key ISRO facility on the outskirts of Bangalore fired at security personnel in the wee hours today after which the guards retaliated but the duo escaped. ISRO sources said the security personnel challenged the two when they found them moving around in a suspiciousmanner.<br/><br/>ISRO spokesperson, S Satish, told PTI that Security was in place and the attempt to attack the guards was foiled. He said ivestigations are on.<br/><br/>This ISRO facility houses the Indian Deep Space Network and tracking station for ISRO's satellite missions.<br/><br/>The Centre sought a report from the Karnataka government in the wake of the firing at a key ISRO facility on the outskirts of Bangalore. Talking to reporters outside Parliament, Home Minister Mr P Chidambaram assured full security in the ISRO complex. Mr Chidambaram said that a security review is underway by the CISF. Replying a question on whether it was a terror attack, Mr Chidambaram said according to the preliminary reports the attack seems to be amateurish. He said it was too early to say anything about the nature of the attack.<br/><br/>In a related development the Ministry of Home Affairs has asked for the sequence of events in the incident seeking a report.<br/><br/>Reports quoting ISRO said two men were lurking near the ISRO centre in the wee hours. When security personnel questioned them, they opened fire and the guards retaliated. The two men managed to escape.<br/><br/>Home Minister Mr P Chidambaram assured that the ISRO complex is fully secure. Making a statement after two gunmen opened fire at the sentries in the ISRO complex near Bangalore, Mr Chidambaram said that a security review is underway by the CISF. Talking to reporters outside Parliament, Mr Chidambaram said that the preliminary reports show that the attack seems to be amateurish. When asked if it was a terrorist attack, the Home Minister said it is too early to say anything about it.<br/><br/>Meanwhile, Karnataka Chief Minister B S Yeddyurappa has ordered an investigation into the firing incident at ISRO. He was speaking to reporters in Shimoga. He said a report on the incident would be sent to the Centre. The Chief Minister said he has convened a meeting of top police officials tomorrow to discuss issues of state security in view of the incident.