Saudi-led coalition closes Yemen ports

SANAA, Yemen - The Saudi-led coalition fighting in Yemen closed off the land, sea and air ports to the country on Monday after a rebel-fired ballistic missile targeted Riyadh.

The coalition's statement ramps up tensions between the Sunni kingdom and its Shiite neighbor Iran, both of which have interests in Yemen's yearslong conflict. The bloodshed continued on Sunday as an Islamic State-claimed militant attack in Aden killed at least 21 people.

In a statement, the coalition accused Iran of supplying Yemen's Houthi rebels and their allies with the missile launched on Saturday toward the Saudi capital's international airport.