Beijing: From beach vacations to entertainers, all things Malaysian are being boycotted in China in protest of the disappearance of Malaysia Airlines flight 370 and what many consider the bungled investigation that has followed.

Major Chinese ticketing agencies this week banned sales of airplane tickets to Malaysia, with one of them, eLong, saying it will maintain the stricture "indefinitely until the Malaysian government and Malaysia Airlines release every piece of information they have in order to find out the truth of the missing flight as soon as possible''.

On Friday, family members of the missing, who have been gathered in Beijing's Lido Hotel since the flight's disappearance on March 8, boycotted a regular news conference held by Malaysia Airlines, leaving airline personnel in a conference room with just journalists.

Even a popular singer, Fish Leong – an ethnically Chinese Malaysian who is pregnant – has been beset by threats on her microblog, with angry Chinese cursing her unborn child.

Of 227 passengers on the ill-fated flight from Kuala Lumpur to Beijing, 153 were Chinese nationals. The families have been encouraging the campaign, with denunciations growing increasingly shrill.