Police in southern Vietnam are looking into a murder case in which a mother has been accused of injecting weed killer into her two sons, causing the death of one of them.
Initial investigation found that Nguyen Thi Be Dao, 26, from Ba Ria-Vung Tau Province attempted to kill both the children, aged 2 and 8, last November.
The younger died at a Ho Chi Minh City hospital 15 days later with severely damaged liver and lungs. His brother survived.
Local officials said Dao and her husband Huynh Van Bao usually argued as he did not believe that the older son is his.
They also said he often beat Dao.
The tension continued even after Bao left the family for his hometown in An Giang Province in the Mekong Delta in late 2014.
The couple kept arguing over the phone during the separation. Police said Dao several times threatened to commit suicide with the boys.
One time she was so angry with the husband she allegedly hit the older boy, causing his head to bleed.
The poisoning happened on November 12, after a heated argument.
Dao’s mother said she did not witness the injections, but noticed that the boys were vomiting and having abdominal pain.
She suspected something wrong and called Bao to come and take the boys away.
He sought help from a private clinic but sent them to a hospital in his hometown, which then transferred the boys to Ho Chi Minh City when their conditions worsened.
Dao also had to seek treatment for liver damage as weed killer was found in her body too.
Doctors at Ba Ria-Vung Tau Mental Hospital concluded that she suffered mental disorders and needed to be hospitalized.
They said she is not in a good condition to take criminal responsibility.