Kate Middleton and her husband Prince William visited the St. Thomas’ Hospital in London on Thursday to take on the difficult issue of suicide.

According to Hello magazine, the Duchesse of Cambridge arrived at the hospital looking as beautiful and chic as ever, wearing a smart green Erdem coat and her hair down in loose waves.

During their visit, the royal couple learned about the work being done at the hospital to prevent suicide and to support those who have been bereaved by suicide.

Kate Middleton tackles suicide stigma with Prince William: https://t.co/nig3BPSA4O pic.twitter.com/JtU6Tv2rhG

— OK! Magazine (@OK_Magazine) March 10, 2016

The couple had the opportunity to meet Jonny Benjamin, a man who was saved by a stranger when he tried to take his own life in 2008 when he was 20. Years later, Benjamin launched the Find Mike campaign to find the man who saved him and, as a result, was reunited with Neil Laybourn.

Benjamin, who is now a mental health advocate, thanked Kate and the prince for their efforts in tackling the issue.

How sweet, Prince William and Kate Middleton laugh together during royal visit: https://t.co/QtS1zblzBa pic.twitter.com/2R3Hhiu9ts

— Express Pictures (@Express_Pics) March 10, 2016

Later in the afternoon, Prince William and Kate will join about 20 school children in attending a screening of a documentary Stranger on the Bridge, which chronicles Benjamins’s story, which will be followed by a private discussion between William and Kate and a group of people who have lost loved ones to suicide.

The Duchess of Cambridge and Prince William speak with former patient Jonny Benjamin https://t.co/LhbbZ46N2y pic.twitter.com/XUxG0VZ61a

— HuffPostUK Pictures (@HuffPostUKPics) March 10, 2016

“The Duke and Duchess and Prince Harry are making mental health a major focus of their work in the year ahead,” said a Palace spokesperson. “The Duke of Cambridge is particularly keen to better understand the difficult issues around suicide, bullying, and the mental health of young men.

“These are issues he has been exposed to both in his official work with homelessness charities and in his work as an air ambulance pilot.”