Three-term Congressman Mark DeSaulnier (D-CA) is in critical condition at a hospital in Washington, D.C., where he was admitted last Friday after falling during a jog.

According to a press release from the congressman’s office, DeSaulnier began to experience more severe medical problems after a rib fracture, which he incurred while jogging last week, caused him to have pneumonia.

“Last Friday, Congressman DeSaulnier was admitted to the hospital to treat complications of pneumonia from a traumatic rib fracture that occurred after falling during a run. He was in serious, but stable condition, and the hospital later advised he was COVID-19 negative,” said Betsy Arnold Marr, the congressman’s chief of staff, in the press release.

“Unfortunately, Congressman DeSaulnier’s condition has deteriorated and he is in critical condition. The doctors are doing everything they can to care for the Congressman. Mark’s family appreciates your thoughts and prayers during this very difficult time,” said Marr.

According to The San Francisco Chronicle, DeSaulnier was tested for coronavirus after he was admitted to the hospital. Marr told the news agency last Monday that the move was done “out of an abundance of caution.”

At the time, Marr told the news agency that the congressman would be out of the office for “at least the next several days” as he recovered at the hospital. DeSaulnier is currently in remission for stage four chronic lymphocytic leukemia, having been diagnosed shortly after arriving in Washington, D.C., as a freshman congressman in 2015. He has also served at the co-chair of the Congressional Cancer Survivor’s Caucus, a bipartisan group of lawmakers who have overcome cancer.

In response to the announcement, congressional lawmakers have have been sending hope and prayers to Congressman DeSaulnier and his family.

Congressman Jamie Raskin (D-MD), who is himself a cancer survivor, tweeted that he was “sending love, strength and prayers for recovery to our beloved Mark DeSaulnier, a great Congressman and leader. All America is pulling for you and your family right now.”

Sending love, strength and prayers for recovery to our beloved Mark DeSaulnier, a great Congressman and leader. All of America is pulling for you and your family right now. https://t.co/2lY5n0nJ1T — Rep. Jamie Raskin (@RepRaskin) March 22, 2020

Congressman Alan Lowenthal (D-CA) said that he was “hoping that all of you can offer your prayers and well wishes to Rep. Mark Desaulnier, one of my dearest friends in Congress. My family and I are praying for him and wish him a speedy recovery.”

I’m hoping that all of you can offer your prayers and well wishes to Rep. Mark DeSaulnier, one of my dearest friends in Congress. My family and I are praying for him and wish him a speedy recovery. — Rep. Alan Lowenthal (@RepLowenthal) March 22, 2020

Congressman Kelly Armstrong (R-ND) tweeted that he was “wishing Congressman DeSaulnier, his family, and his staff all the best.”