A Qatar Airways flight that took off from Delhi to Doha with over 100 passengers on board was diverted to Pakistan's Karachi airport due to a technical snag in the plane.

"Qatar Airways flight QR579 from Delhi to Doha on 21 March diverted to Karachi having declared an emergency due to the indication of smoke detected in the cargo hold," the airline said in a statement.

According to the statement, the aircraft landed safely in Karachi where emergency services were provided after the passengers safely disembarked.

Qatar Airways in a statement said the incident is currently under investigation and a relief flight is being arranged to transport passengers onwards to Doha.

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