By Jen Heger

Breaking Celebrity News Legal Editor

Officials with the Los Angeles Department of Children and Family Services are continuing to investigate allegations of alcohol and drug use against Mariah Carey and Nick Cannon shortly after the birth of their twins.

"The case will probably remain open for the next week, out abundance of caution," a source with knowledge of the situation tells Breaking Celebrity News.

"There has been absolutely no findings that either Mariah or Nick were doing anything illegal, or that could place the twins in danger.