The contradicting information over here is that they do not mention how many pagers have exploded. They only say that hundreds of pagers exploded. That would suggest that it is less than 1000 and thereby a lot more collateral injuries than intended.

There are also news that two of the dead are medical staff. I know that the medical personel in many countries (including the NHS in UK! ) use pagers. Them being medic personel does not exclude the chance of them being involved in Hezbollah, but i feel that there is a lot of contradiction in this story