“We express our deep concern and condemn the life imprisonment given to President Morsi who has remained in prison since 2013,” said a statement posted on the Turkish Foreign Ministry website.
“We believe that this decision will not contribute to Egypt's peace and stability”.
Morsi, along with 10 co-defendants, were accused by Egypt’s army-backed authorities of spying for Qatar and leaking classified documents to the Gulf statelet during his single year as president.
A court on Saturday sentenced Morsi to life on charges of "leading a terrorist group" – in reference to the Muslim Brotherhood, which was blacklisted by the Egyptian authorities in late 2013.
The court, however, cleared Morsi of charges of spying for Qatar, which was a main backer of Morsi’s administration while he was in power.
Egypt's first democratically elected leader, Morsi was ousted by the military in a 2013 military coup following protests against his presidency.
He has since been slapped with life-in-prison and death sentences for "conspiring against Egypt" – with Palestinian group Hamas and Lebanon’s Hezbollah – and for breaking out of jail in 2011.
He has also been sentenced to a 20-year jail term for allegedly committing murder.
Morsi and his co-defendants, along with a number of independent observers, say the charges are politically driven.
Since Morsi's ouster and imprisonment, the Egyptian authorities have launched a harsh crackdown on his Muslim Brotherhood group – killing hundreds and jailing tens of thousands – while relations between Cairo and Doha have nosedived.
Anadolu Agency