BEIJING - A court in China has refused to accept a lawsuit against a Chinese dairy filed by dozens of families whose children were sickened by tainted milk.

Lawyers involved in the case say today the lawsuit on behalf of 63 defendants -- including the parents of two children who died -- sought compensation from state-owned Sanlu Group Co.

Sanlu is the dairy at the centre of China's worst food safety crisis in years.

Activist lawyer Li Fangping says they will continue to push the case and put pressure on the dairy.

China's Health Ministry admitted last week that six babies likely died, twice the previous figure, and 294,000 babies suffered urinary problems from drinking contaminated infant formula.