VATICAN CITY—The Vatican said Thursday that Pope Benedict XVI is looking into visiting Cuba and Mexico next spring, traveling to a region where about half of the world's Catholics live and where Pope John Paul II made historic visits during his pontificate.

The announcement marked the first word from the Vatican of a possible foreign trip for the pontiff next year, and signals that despite his age—he turns 85 in April—and increasing frailty, Benedict still intends to travel far to meet the world's Catholics.