Tonight,ht months after mariaevastated the island, to 3.5 milli American citizens, ere still iring the fragile power id, and tantill without power and still ti over the true death toll. Here's Victor Oquendo. Ortet: In storm ravaged yabucoa, not only do many feel werless after hurricane MARIA, many still remain without power. Do you feel like you've been ten? Yeah, been forgotten. We thihegotten us. Reporter: Angel cartagend his wife have been without electricity since maride landfall in their town last September. More than 10 remain without power. The longest running blackout American hry. Do you fl like you're ready for this hurricane season? No/, I don't think that we're ready bee we're not rein my mind. Reporter: Officials say it might take another two months before power is restored. En like these. David found walking down hallways without power, meeting people strugg to cope ha now mostly disappe. But officials admit the grid remains vuable and that another storm cowipe away any ss. And aer landfal rob Marciano found MARIA ortn D desperation. We can't let them die. Reporter: We found her ag We got the power back on March 16th but still, it goes on and off. Reporter: The official D toll stands at 64 but a new Harvard studys at least 4,600 deaths cane linked to thhurricane. Victor is back San Juan for us tonight. So manyst about the iginal deaoll you just repoon. And tonight, Puerto ri government seeming to kne that more than 64 pe died connected to MARIA? Reporter: That's ri for the first , we're seeing new official numbers that suggt a sharp spike in deaths after mar. In the three months after the hurr1,400 moreple diedhan the previous year. But T Govert is stopping sht of saying the hurricane was responsible. Thank Yo There's still mucre ahead on "World tonight"