The decision to postpone the last phase of the tournament was taken fearing COVID-19 spread.
The tournament was in its last phase, with Multan Sultans set to face Peshawar Zalmi and Karachi Kings about to take on Lahore Qalandars in the two semi-finals on Tuesday (March 17) in Lahore behind closed doors.
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The final was scheduled to be held at the Gaddafi stadium also on Wednesday (March 18).
But all the knock-out fixtures have been suspended for now as part of further measures by Pakistan Cricket Board to tackle the coronavirus pandemic.
Fear of the virus had already affected the event as the last round of league-stage encounters were played with fans barred from turning up and the overall scheduled rejigged with games from Karachi shifted to Lahore.
It remains to be seen how the tournament winner will be decided in given circumstances.
Multan Sultans topped the six-team points table after six wins, two losses and a couple of no results in their ten league games.