By Ben Blanchard and Faith Hung TAIPEI (Reuters) -Authorities in Taiwan and Bulgaria on Friday denied involvement in the supply chain of thousands of pagers that detonated on Tuesday in Lebanon in a deadly blow to Hezbollah.

Two people from Taiwanese companies were questioned as part of a probe into pagers that exploded while being used by Hezbollah operatives in Lebanon, investigators said Friday, as top officials insisted the devices were not from the island.

Taiwan-based Gold Apollo said this week it did not manufacture the devices used in the attack, and that Budapest-based company BAC to which the pagers were traced has a license to use its brand