Movie star-turned-political crusader has already met with Turkey's president.
UN ambassador said new measure "invites instability".
Source close to actor slams reports that claim Pitt sought any kind of sobriety treatment.
The actor was recently spotted enjoying a relaxed stroll in Santa Monica, California.
The Allied actor was pictured talking on the phone.
Journalist Ian Halperin uncovers truth in new TV documentary Broken: The Incredible Story of Brangelina.
Pitt had earlier surprised fans by making an appearance at the Golden Globes held on 8 January.
'My heart is with everybody, and my daughter, certainly, and the children' says Voight.
Recently, Pitt appeared at the 74th Golden Globes Awards to introduce his movie Moonlight.
Pitt and Jolie have agreed to keep divorce private in a joint statement.
Pitt wants to 'remain a constant and active figure in their lives', a source was quoted as saying.
Jolie filed for divorce from the 53-year-old Allied actor in September 2016.
Pitt is said to have 'broken down in tears so many times - he's not ashamed to cry'.
Pitt split from Jolie in September and is currently embroiled in a bitter custody battle.
Pitt and Jolie were together for 11 years before filing for divorce in September, 2016.
Pitt's lawyers said Jolie has 'no self-regulating mechanism' and is violating the children's privacy.
Pitt celebrated his 53rd birthday on 18 December enjoying a mellow dinner with close friends.
Pitt has reportedly been permitted to deliver gifts in the morning but has to leave by early afternoon.
'Because I was dating Jennifer Lopez that made it a big f***ing deal,' Affleck said.
'I'm hoping to see my grandchildren' for Christmas admits Voight.
This comes after an earlier report claimed Pitt was bothered by Jolie's blossoming friendship with Arminka Helic and Chloe Dalton.
Pitt and Jolie have currently agreed on a temporary custody settlement involving their children.