LOS ANGELES (KTLA) -- Tyler Armstrong, an 8-year-old boy from Yorba Linda, has achieved his goal of climbing Mount Kilimanjaro.
Tyler's family says he reached the top of the mountain at 12:30 a.m. Sunday, which was mid-morning in Africa.
He's believed to be the second youngest person ever to reach the summit.
At more than 19,000 feet, Kilimanjaro is the tallest mountain in Africa and the fourth highest peak in the world.
He took on the challenge to raise awareness and funds to find a cure for Duchenne muscular dystrophy, which affects 300,000 boys worldwide.
He first became interested in helping children with Duchenne when he met a boy with the disease who was in a wheelchair.
Tyler is asking people to donate a dollar for every foot he climbs.
All donations to his effort will support CureDuchenne, a non-profit organization that supports scientists doing research on the disease.
Previously, Tyler reached the top of Mount Whitney in Sierra Nevada, California -- the tallest mountain in the continental United States.
Tyler is believed to be the youngest person to climb that mountain in a single day.
To donate or follow Tyler's climb, go to: http://www.topwithtyler.com.
For more information on CureDuchenne, visit: http://www.cureduchenne.org.Copyright © 2014, Los Angeles Times