“The lifeless bodies were found in a private house on Hasselstrasse in Solingen,” a police spokesperson told Sky News 24.
Police said the victims were aged 1, 2, 3, 6 and 8 years old, respectively, Bild reported.
Authorities made the grisly discovery after receiving a call around 1:45 p.m. local time from the children’s grandmother that her 27-year-old daughter had killed the children and escaped with an 11-year-old.
“Unfortunately, this proved to be the case,” Weiand said. “At the moment, we assume that the 27-year-old mother was responsible.
“The mother threw herself in front of a train in Duesseldorf and is badly injured. At the moment she is being treated in hospital,” he added. “There is one more child that survived.”
The 11-year-old was unharmed and returned to the grandmother, the Mirror reported.
Police are still trying to piece together what led to the incident. The causes of the deaths have not yet been determined.