Saudi Arabia is considering barring overseas pilgrims from the annual haj for the second year running as Covid-19 cases rise globally and worries grow about the emergence of new variants, two sources familiar with the matter said on Wednesday.

Such a move would restrict the pilgrimage to Mecca, a once in a lifetime duty for every able-bodied Muslim who can afford it, to Saudi nationals and residents of the kingdom who were vaccinated or have recovered from Covid-19 at least months prior to attending...