Franklin Graham, the President of aid charity Samaritan's Purse, has returned from Ukraine, but states his team continue to be dedicated to helping people 'on the ground.'
The country has been at war for over a month; Graham has stressed that help is still required.
He said: "This is dangerous work, but our team is committed to helping the people of Ukraine.
"We want them to know that God loves them and we're here to care for them.
"There are many needs on the ground, but the greatest need is prayer.
"We need to continue to pray that God would work in the hearts of leaders to end the fighting."
Whilst in Ukraine, the evangelical preacher met with Samaritan's Purse teams providing medical care for thousands of people caught in the middle of the conflict.
Graham also visited Lviv and met with local church leaders, as well as staff from the Emergency Field Hospital.
The hospital is equipped with an operating room for surgeries. However, Samaritan's Purse is currently moving staff and equipment further east, hundreds of miles closer to the frontline.
There in the next few days, the doctors and nurses will be providing medical care where help is desperately needed.
They have the resources to treat as many as 200 patients a day and will be able to provide surgical care for trauma patients in their new location.
Samaritan's Purse currently has more than 150 staff members in the region, and their teams have been on the ground since the early stages of the conflict.