CAIRO — President Abdel Fattah el-Sisi of Egypt sought on Wednesday to reassure residents of Sharm el Sheikh about the exodus of tourists after the crash of a Russian charter jet after takeoff from the resort’s airport. But to Egyptians worried about putting food on their tables, he offered little comfort.

“Be like this!” he urged, holding up a fist. “We won’t eat? Fine, let us not eat! We will be hungry? So what? Let us be hungry!” he said in a television interview at the Sharm el Sheikh airport. “Do you think that anyone can defeat the Egyptians?”

Two weeks after the crash, most of the world has concluded it was most likely a bombing, and several countries, including Britain and Russia, have canceled flights to the resort area.

Satellite images, flight data recorders and the scattered debris show that the plane exploded suddenly in midair. The Egyptian branch of the Islamic State, also known as ISIS or ISIL, has claimed responsibility. Western governments have said intelligence intercepts lend some credence to the claim. And Egypt has disclosed no clues pointing to any alternative explanation — nor much information of any kind about the investigation.