It is still unclear what missiles and target acquisition systems the Yemeni rebels are using. AFP cited an unidentified senior defence official as saying they are believed to have a type of the Chinese-made C-802 anti-ship missiles. That could be interpreted as a reference to Iran's Noor version of the C-802, which has a range of 120 km.
However, that assertion was undermined by an earlier report that they had a far shorter range. A US official told Reuters that one missile travelled more than 24 n miles (44.5 km) before coming down in the sea. That is a close fit for the C-801, which has a stated range of 42 km and was acquired by the Yemeni Navy in the 1990s.