Just months after welcoming her first child, Eva Mendes is now sadly facing a family tragedy.

According to a new report, the 41-year-old actress is heartbroken over her brother Carlos’ cancer diagnosis and is dedicated to doing whatever she can to ensure he beats the disease.

“She is such a family-oriented person, this is absolutely devastating,” a source said of the star, who welcomed daughter Esmeralda with boyfriend Ryan Gosling, 34, last September.

eva mendes and ryan gosling

Eva with Ryan in September 2012.

“She is pulling out all the stops and making sure Carlos has the best doctors available,” added the insider. “Eva feels money is no object when it comes to Carlos’ health.”

Related Story: Eva Mendes Opens Up About New Motherhood With Baby Esmeralda

In January, Eva was overcome with emotion while speaking about her brother’s cancer battle at a ‘Stand Up To Cancer’ event.

“Each one of us in this room that is here tonight, we’re here because someone in our family or someone close to us has been affected by this insidious disease,” she continued. “Tonight I’m here with my family and my brother Carlos, who I love so much.”

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Eva onstage at the charity gala on Thursday, Jan. 29.

She then told the star-studded audience her lack of sleep was to blame for her onstage tears. “I just had a baby! I hadn’t slept. I’m sorry,” Eva explained. “Thank you so much for inviting me to join you tonight.”

Star‘ magazine was the first to report this story.