Kabul - At least 20 people were killed Friday in back-to-back earthquakes in eastern Afghanistan.
The first quake, with a magnitude of 5.4, struck shortly after midnight in Nangarhar province, a statement from President Hamid Karzai said.
A few hours later, a magnitude-5.1 tremor struck in the same region in the Hindu Kush mountains, the statement said.
At least 50 people were injured by falling rubble, and authorities were searching for more victims, officials said.