"Only the Malaysia government knows the truth. They've been talking nonsense since the beginning," said Wen Wancheng, following a meeting with airline officials in Beijing as the search entered its 10th day.
"You hid the whereabouts from the beginning and after seven to eight days you discovered it? That was the best time to launch a rescue," added the 63-year-old from the eastern province of Shandong, whose son was aboard the missing jet.
The relatives' anger came as Malaysia drew more scathing criticism from Chinese state media and social media users.
Malaysian Prime Minister Najib Razak on Saturday disclosed that the flight had been deliberately diverted, and that the plane flew for several hours after leaving its intended flight path.
In an editorial, the China Daily newspaper questioned why the announcement came more than a week after the flight vanished and wondered whether Malaysia was sharing all of the information it had gathered.
"What else is known that has not been shared with the world?"
Two-thirds of the passengers on board the flight were Chinese, and Beijing has been critical of Malaysia's sharing of information -- a concern reiterated today as fears mounted that the plane might have been hijacked.
"It is of the utmost importance that any loopholes that might have been exploited by hijackers or terrorists be identified as soon as possible because we need counter-measures to plug them," the China Daily wrote.
"The lack of national strength and experience in dealing with incidents has left the Malaysian government helpless and exhausted by denying all kinds of rumours," Yao wrote.
