Al Qaedas operational chief for Afghanistan and Pakistan was killed in a US drone strike in Pakistan, security officials said Tuesday. Earlier in the day the the Wall Street Journal reported that the CIA has stepped up drone attacks against militants in Pakistans tribal areas to try to foil a suspected terror plot against European targets. Drone attacks reached unprecedented levels this month. According to researcher Dr Zeeshanul Hasan Usmani, who monitors drone and suicide attacks in the country, there have been a total of 198 drone attacks since the first hit on June 18, 2004 in South Waziristan Agency.