Assault and intimidation cases within families have more than doubled from five years ago, the National Police Agency said.
Between January and November, the number of assaults in which attackers and victims were related came to 3,264, up from 1,617 in 2007, the National Police Agency said. Similar intimidation cases meanwhile grew to 366 from 177.
The rise was attributed mainly to an increase in complaints as violence wreaked by stalkers and spouses drew more attention, the agency said.
Assaults between relatives rose to 15.2 percent of the total from 7.6 percent five years ago, while cases of intimidation grew to 16.1 percent from 9.7 percent.
According to the NPA, the total number of assaults detected in the first 11 months of 2012 rose 9.6 percent from the previous year to 29,465, while intimidations surged 41.6 percent to 3,027 cases.
In the same period, however, the crime total overall declined 6.6 percent from a year before to 1,279,045 cases, compared with the peak of 2.85 million in 2002.