The natural disaster comes nearly two weeks after Papua New Guinea experienced a large, magnitude 7.5 quake, with the country's Southern Highland and Hela provinces most heavily affected.
It is reported that aftershocks of magnitude 6.7 was recorded in 112 km South-West of the city of Porgera.
The nation was hit with the powerful quake on February 26, and it was followed by very strong aftershocks.
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At least 55 people have been confirmed dead, while authorities fear that the death toll could exceed 100.
The Philippines, at the same time, expressed its sympathies to the people of Papua New Guinea and reiterated President Rodrigo Duterte's expression of solidarity.
A strong 6.8-magnitude natural disaster hit off the Papua New Guinea coast early Friday, but there was no tsunami warning or immediate reports of damage.
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Unusually, the Governor's address went on to expose the Centre for its failure to extend a helping hand to the state. The CM further said, as BJP is our ally party we are continuing peaceful agitation.
The government is having a tough time reaching some of the remote areas that were affected by the quakes due to landslides and collapsed roads.
Agriculture Secretary Emmanuel Piñol personally conveyed the President's condolences to Papua New Guinea Prime Minister Peter O'Neill, according to the DFA.
"We express our condolences to the government and people of Papua New Guinea and pray that last night's aftershock would be the last", said Foreign Affairs Secretary Alan Peter Cayetano in a statement. "People's livelihoods are devastated, their personal property is gone".
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