Trump and Kim will hold a one-on-one meeting on Tuesday that could last up to two hours

Vienna could be a possible venue for such a summit, says Russian president

Security during the course of the summit is expected to be ultra-tight

Tuesday's Singapore meeting is the climax of the astonishing flurry of diplomacy on and around the Korean peninsula

Washington gave up official diplomatic ties with Taipei in 1979 to recognise Beijing

The summit venue, roads and hotels in Singapore will be secured by the Gurkha Contingent of the Singaporean police

Pakistan and India are set to attend the SCO summit being held this year in Qingdao, eastern China, on June 9-10

US health alert issued for China over mysterious illness revives fears of rumoured sonic weapon in Cuba two years ago

Authorities have also restricted the use of airspace, to facilitate the summit

Sergeant Wayne Jenkins headed the Gun Trace Task Force responsible for abuse in the troubled US city