ReliefWeb

Relief officials say food reserves will run out in two to four months

* Aid flows at risk from increased attacks at sea

* Raids also pose threat to commercial shipping

* Strikes happen near vital global shipping lane

* Al Qaeda suspected of new seaborne attack

* Red Cross says suppliers want to avoid Hodeidah

* Graphic of Yemen: http://tmsnrt.rs/2jV4tDI

By Jonathan Saul and Katie Paul

LONDON/RIYADH, March 6 (Reuters) - Cruise missiles, floating mines and a remote-controlled boat have been deployed to attack ships in Yemen in recent months, changing the dynamic of the two-year-old war and pushing the country closer to famine, shipping and aid officials say.

The weapons have targeted military vessels from a Saudi-led coalition which is fighting Iranian-allied Houthi rebels in the impoverished state on the tip of the Arabian peninsula, part of the same regional power struggle that is fuelling Syria's war.

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