Israeli officials have not commented on the blasts, but security sources said spy agency Mossad was responsible
A new message purporting to come from the leader of Daesh said air strikes by Russia and a US-led coalition had failed to weaken the group.
"Be confident that God will grant victory to those who worship him, and hear the good news that our state is doing well. The more intense the war against it, the purer it becomes and the tougher it gets," said the audio recording, described as by Abu Bakr Al Baghdadi.
The authenticity of the message, posted on Saturday on Twitter accounts that have published Daesh statements in the past, could not be verified.
It slammed Saudi Arabia's efforts to set up a coalition of Muslim nations to fight his group.
"If it was an Islamic coalition, it would have declared itself free from its Jewish and Crusader lords and made the killing the Jews and the liberation of Palestine its goal," the message said.
The militant group controls swathes of Iraq and Syria but has come under intensifying military pressure in recent weeks.
A US-backed alliance of Syrian Kurds and Arab rebel groups, backed by US coalition planes, said it captured a Syrian dam on Saturday from Daesh, cutting a main supply route of the militants across the Euphrates.
In Iraq, government troops were pushing deeper into the heart of the last remaining district held by Daesh in the city of Ramadi.
The last such online public message said to be by Baghdadi was posted in May. He has been reported injured or killed several times in fighting, apparently incorrectly.
Israeli officials have not commented on the blasts, but security sources said spy agency Mossad was responsible
The businessman reportedly attended at least two meetings in Iran to discuss the possibility of killing prominent figures, said Israeli security services
Hezbollah earlier fired around 20 projectiles into Israel, most of which were intercepted by air defence systems without causing any injuries
MbS made the remarks at an annual speech to the advisory Shura Council, which he gave on behalf of his father, King Salman
The group accused Israel, which has so far refused to comment, as US denies involvement
At least one of the blasts took place near a funeral organised for those killed the previous day when thousands of pagers exploded
The commissioner, Volker Turk, described the blasts as "shocking", and said their impact on civilians was "unacceptable"