Police in the Mekong Delta province of Tien Giang Wednesday arrested a man who allegedly killed his mother and buried her after a quarrel, newswire VnExpress reported.
They found Nguyen The Trieu, 29, of Go Cong District hiding in an abandoned building near his house. He confessed to killing Nguyen Thi Ngoc Chau, 70, at home late last month.
On Tuesday Chau's neighbors had reported to the police that she was missing for two weeks.
When officers questioned Trieu, he said she was visiting Ho Chi Minh City, but failed to say precisely who or what she was visiting.
The police searched the house but did not suspect anything was amiss. But they saw Chau's mobile phone on her bed.
Some officers were suspicious and continued to search the house. They discovered a newly-planted mango tree near the house.
Meanwhile, Trieu sneaked out of the house and hid in the abandoned building.
The police dug out the tree and found Chau's decaying body underneath.
After his arrest Trieu told the police that he had quarreled with Chau on August 29, and stabbed her in the head with a knife when she scolded him.
He then buried her and planted the tree to cover up the crime.