According to the report, the two – Anwar Sheibar and Ahmad Hassanain, both former members of the Fatah security forces – may have led the alleged Israeli assassins to their target.
A senior Palestinian intelligence official quoted by the Times, said that it was "highly likely that both men had known al-Mabhouh personally during their time in military intelligence in the Gaza Strip."
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According to the Times, the US' Federal Bureau of Investigation may also weigh in to the investigation, following reports that American credit cards were used in the operation.
Meanwhile, Dubai authorities said they have uncovered new evidence incriminating Israeli agents in the hit, including credit card payments and phone calls made by suspects, an Arabic-language Al Bayan daily reported on Saturday.
Police have already said the 11 suspects used forged passports in the names of innocent individuals of several European nationalities.
"Dubai police have information confirming that the suspects purchased travel tickets from companies in other countries with credit cards carrying the same names we have publicized (in the passports)," Al Bayan daily on Saturday quoted Dubai police chief Dahi Khalfan Tamim as saying.
"The new evidence… includes telephone communications between the culprits who have been detected," Khalfan told the state-governed newspaper.
Following the release of the suspects' photographs by Dubai authorities, Interpol issued "red notices" for their arrest in any of its 188 member countries.