President Barack Obama visited Joplin, Missouri on Sunday after returning from a six day diplomatic tour of Europe.

Obama visited Missouri Southern State University where he participated in a memorial service.

There is no doubt in my mind that Joplin will rebuild, Obama said at the event. As president, I can tell you that your country will be there with you every single step of the way.

The city of Joplin was hit by a massive tornado a week ago which killed 142 people. It has been the deadliest year for tornadoes since records started being kept 60 years ago. This year, the President has also visited Tuscaloosa, Ala., which was hit by tornadoes in April, and went to Memphis to survey flood damage.

Obama arrived in Joplin with Federal Emergency Management Agency Administrator Craig Fugate. He was joined by Missouri Gov. Jay Nixon and Sen. Claire McCaskill, D-Mo., for a motorcade tour. Gov. Nixon spoke about the seriousness of the devastation from the tornado.

It seems inconceivable that just one week ago, the people of Joplin were going about their daily lives, Nixon said. He also added It's going to take a higher power to help the area to rebuild and be restored.

The tornado cut through a stretch nearly a mile (1.6 km) wide, destroying approximately 8,000 buildings in Joplin, a city of 50,000 in southwestern Missouri.

Many of the people who attended Sunday's service mentioned it helped them in their grieving process and said it will assist them in moving forward with rebuilding.