The aide was admitted in Tunisia's military hospital and the letter sent for analysis by a special service of the Interior Ministry
The attack in Nice came amid a fierce debate in France and beyond over the re-publication of the Muhammad caricatures by satirical newspaper Charlie Hebdo.
The veteran politician, the oldest head of state after Britain's Queen Elizabeth II, came to power in 2014, three years after the Arab Spring uprising toppled longtime despot Zine El Abidine Ben Ali and sparked revolts in several Arab nations.
The confident coach, in his second spell as national team boss, said his side could beat England and open the door to progressing from the group stages and to the quarter-finals.
Members of various farmers organizations black railway tracks during a protest against central government, in Patiala.PTI Photo
A cyclist falls as he and other commuters wade through a waterlogged area following heavy rain in Gurugram.PTI Photo
BJP leader Vasundhara Raje attends the National Office bearers meeting at the party headquarters in New Delhi.PTI Photo/Kamal Kishore
Uttar Pradesh Chief Minister Yogi Adityanath and state Assembly Speaker H N Dixit arrive to attend a special session of UP Assembly, at Vidhan Bhawan in Lucknow.PTI Photo/Nand Kumar
BJP National President JP Nadda chairs national office bearers meeting at the party headquarters in New Delhi.PTI Photo/Kamal Kishore
The Opposition is hoping for a rich election harvest in Uttar Pradesh but Lucknow appears to be a long way from the killing fields.
The former Delhi Police employee has also emerged as the go-to man for the authorities to reach out to the agitating farmers.
Outwardly peaceful, Kashmir has seen a spate of civilian killings in recent weeks. A silent unease has now exploded into fear and concern after the shooting of minorities.
Virat Kohli will step down as T20 captain of India and RCB but that will not take away the fact that he remains a unique leader
With all foreign soldiers out of Afghanistan, the Taliban is now in a position to do pretty much what it wants.
It can be a crucial stepping stone to develop young minds to appreciate the importance of practising honesty throughout their academic journey and lay the foundations for successful professional careers.
One can be pro-religion, but against coerced religion; one can be pro-vaccines, but against coercion and mandates