On 25 July 2006, the Republic of Lebanon's Ministry of Environment requested assistance through the REMPEC regional Mediterranean response centre from the members of the Barcelona Convention and other partners of the Mediterranean Action Plan. On 27 July, the Ministry also addressed a request for experts and material to the European Commission, which communicated this request to the member States. By 5 August, the pollution had spread to the Syrian shores, and Syria in turn requested assistance from REMPEC.
Upon
request from REMPEC, Cedre immediately provided information on the
different techniques suitable for pollution response on the shoreline
and played the role of general secretary for an international experts
working group in charge of establishing a response plan. During
the second week of August, pollution response specialists were sent
to assess the situation in Lebanon (European Commission) and in
Syria (REMPEC).
REMPEC
also called upon
CYCOFOS (the Cyprus Coastal Ocean Forecasting and Observing System)
for information on pollutant behaviour and drift predictions. Like
the MOTHY model activated by Météo France at Cedre's
request, these predictions indicated a tendency for the pollution
to drift northwards, progressively polluting the shoreline.

Pollution response worksite. Source: Cedre.
Several satellite images, handled by CYCOFOS and the Joint Research Centre of the European Commission, confirmed this northward movement of the pollution. However, this imagery seemed to indicate a more significant presence of pollutant near the coast than the models. As of 20 August, aerial observations clarified the situation: practically no significant volumes of oil were still drifting at sea.
The work carried out by the Experts Working Group acted as a basis for establishing an international assistance action plan which was validated on 17 August in Piraeus (Greece) at a coordination meeting between the contributor organisations and the representatives of the countries in the area. This action plan was made up of three phases: