Blake Lively reacts to tragic deaths of Hayden Panettiere, Michelle Trachtenberg

Blake Lively finally broke the silence on the tragic deaths of Hayden Panettiere and Michelle Trachtenberg.

Taking to her Instagram handle on Monday, the 39-year-old actress encouraged people to "be kind" while paying a heartfelt tribute to Hayden and Michelle.

“Be Kind. You never know what others are going through,” Blake pointed out.

“Thank you to both of these women for all the joy you brought so many," she added.

Along with this emotional message, Blake shared a clip of the late actresses from their 2005 comedy Ice Princess.

For those unversed, Hayden was found dead on Sunday in Greenville, South Carolina. She was 36.

“It is with profound sadness that we share the tragic passing of our beloved Hayden," her father said in a statement to ABC News.

"She was an incredible light and a force of nature who brought immeasurable love and joy to all who knew her — and to the millions who watched her onscreen,” he added. “We ask for privacy as our family takes time to process this unimaginable loss.”

A similar outpouring of grief was witnessed in February, when Michelle was found unconscious in her apartment in Midtown West, New York City. She was 39.