The US also said Pakistan-based Lashkar-e-Toiba (LeT) posed a 'regional and global' threat for the country and India
"There are five, probably six, suspects currently being held in Islamabad in connection with the 26/11 Mumbai terror attacks," US Ambassador Timothy J Roemer said.
"It is extremely important that these six people be brought to justice and put behind bars and receive sentences commensurate with their crimes against India, US and the world," he said.
Roemer said he hoped that Pakistan will take action on 26/11 culprits including Hafiz Saeed.
"The US is committed in this region to pursue, deter and defeat LeT and other terrorist threats," he said.
The US is expending personal treasure and resources to help dismantle infrastructure of terrorism in this region, he added.