The grieving families, who have accused Malaysia of hiding information over the fate of the Boeing 777, are calling for a meeting with Prime Minister Najib Razak and his transport minister Hishammuddin Hussein, The Star online said.
Najib's aide said no meeting with the newly arrived families had been scheduled for Sunday.
A spokeswoman for Malaysia Airlines said she could not comment on the matter out of respect for the families' privacy.
Several other Chinese family members have been in Malaysia since shortly after the plane lost contact with air traffic controllers.
Najib announced last week that, based on satellite data and other calculations, the plane with 239 people on board was lost in the Indian Ocean on March 8 after being mysteriously diverted thousands of miles off course.