While the Houthis have said they are only targeting Saudi shipping as part of a blockade in retaliation for the one imposed on them, concerns about wider attacks persist. Saudi Arabia has confirmed at least 12 people were killed and more than 300 injured after Houthi fighters struck Riyadh. Key points and original sources are listed below.

• While the Houthis have said they are only targeting Saudi shipping as part of a blockade in retaliation for the one imposed on them, concerns about wider attacks persist.S1

• Saudi Arabia has confirmed at least 12 people were killed and more than 300 injured after Houthi fighters struck Riyadh.S2