Former Pakistan president Pervez Musharraf's plane has landed in Karachi as he returns from self-exile.
Mr Musharraf, who seized power in a 1999 coup, resigned in 2008 when his allies lost a vote and a new government threatened him with impeachment. He left the country a year later.
The former army general faces charges of failing to provide adequate security to former prime minister Benazir Bhutto before her assassination in 2007. He also faces charges in connection with the death of a Baluch separatist leader.
Mr Musharraf claimed yesterday he has been granted advance bail in order to avoid being arrested upon his return home.
More top news
The PM will sound out the possibility of new free trade agreements with Gulf states for once the UK has left the EU.
In the unexpected announcement on Monday, Mr Key said it was the "right time" to leave politics.
As the Government's Brexit appeal comes to the Supreme Court, here's a look at what you need to know.