(CNN) -- On the same night the US killed Iranian commander Qasem Soleimani, the US unsuccessfully targeted another senior Iranian military official in Yemen, according to a US official with knowledge of the events and another source familiar. The sources would not give any details about the mission or how the US had attempted to carry it out. The US official said to the best of their knowledge there is no broader operation to decapitate the IRGC-Quds force leadership at this time.