A suspected bomb explosion badly damaged the first floor of a senior police official's house in the northern province of Thai Nguyen on Saturday, but no one was hurt, according to local reports.
At around 2 a.m., a huge sound coming from the house of Colonel Nguyen Nhu Tuan, director of Thai Nguyen Province Police Department, shook the residential area on Luong Ngoc Quyen Street in Thai Nguyen City.
Residents rushed out of their houses and saw thick dust in the air.
The front door and the first floor of Tuan's house were totally damaged. All the glass windows of the house and that of a dozen nearby houses were broken.
A computer store next to Tuan's house also had its collapsing gate damaged.
Tuan, his wife and two children were sleeping on the second floor at the time of the explosion, so no one was injured.
Tuan was assigned to be provincial police chief just several months ago. He has taken tough measures to crackdown on crimes and gangsters, police said.
Several minutes after the explosion, many police cars with hundreds of officers arrived at the scene.
Police said the explosion could have been caused by a bomb, probably placed by someone who wanted to take revenge on Tuan.