Register staff

Democratic presidential candidate Hillary Clinton said she was "heartbroken" at the news of shooting deaths of two Iowa police officers early Wednesday morning.

"Heartbroken for the families of two brave officers who were killed in Iowa. There’s no justification for this kind of violence. -H," the candidate tweeted around 11 a.m. The tweet was signed "-H," which usually indicates it was sent directly by Clinton.

More national reaction:

Condolences pour in for officers killed in Iowa ambush

Loretta Lynch releases statement on Iowa police shooting