Egypt has dealt with EgyptAir flight MS804 accident very well, President Abdel Fattah Al-Sisi said Sunday during the inauguration of MOPCO fertilizer factory expansion in Damietta governorate. Sisi stressed that search and rescue units were deployed immediately after the plane crash, expressing his appreciation to all the countries that moved quickly to help in searching and rescuing process. He confirmed that there is no certain cause for EgyptAir's plane accident until now. The president pointed out that a submarine that belongs to the Ministry of Petroleum will be used in recovering the black box of the crashed plane. Sisi offered his condolences to the families of plane victims, calling the attendants to stand a minute of silence for the plane's victims.