CASABLANCA — Less than two months after winning power in Morocco’s elections, the moderate Islamic party of Prime Minister Abdelilah Benkirane is surprising opponents by moving to relax the country’s strict abortion laws.

In an interview last week, a top aide to Mr. Benkirane, Mustapha Khalifi, speaking in a personal capacity, confirmed media reports that the prime minister would support an initiative to allow abortions in cases of rape and incest.