Zulkifli bin Abdul Hir, alias Marwan, a Malaysian bomb maker with a USD 5-million US-government bounty on his head, is roaming the southern Philippines, senior military officials said.
"He is alive and we continue to monitor him," Lieutenant Colonel Ramon Zagala told AFP.
Philippine military chiefs said in February 2012 that Zulkifli was among 15 members of the Al-Qaeda-linked Abu Sayyaf and Jemaah Islamiyah organisations killed in an airstrike on the southern island of Jolo.
In 2007, the US government offered a USD 5-million reward for his capture, making him one of the United States' most-wanted men.
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Another top Jemaah Islamiyah member, Singaporean Mohammad Ali, alias Muawiyah, was also declared killed in the airstrike, along with a Filipino leader of the Abu Sayyaf.
"This is a big victory. There were three senior leaders (killed). This will have a very big impact on the capability of the terrorists," then-regional military commander Major General Noel Coballes said at the time.
"Yes, its an A-1 (information). We have something but we cannot divulge all the other information because its an operational (secret)," Arnulfo Burgos, Zagala's predecessor, said at the time.
However, Zagala insisted today that the Philippine military had never said Zulkifli had definitely been killed.
"There were reports that said he was dead but it was never validated... We never confirmed he was dead," he told AFP.
Zagala declined to answer further questions about the case, such as whether the other two top militants were also alive.