The U.S. military says the strikes were carried out in retaliation of the December ambush that killed two U.S. soldiers and one American civilian interpreter.

In a joint statement, the foreign ministries of the U.K., France, Germany, Sweden and the Netherlands say Navalny was poisoned by Russia with a lethal toxin derived from the skin of poison dart frogs.

Researchers celebrate early results of a drug that may become the first treatment for a serious complication of pregnancy called preeclampsia. It's got the potential to save many lives.