The US says it has carried out fresh attacks on southern Iran - targeting missile sites and boats attempting to lay mines.
The developments come despite diplomatic moves towards a peace deal.
Tehran has downplayed suggestions an agreement with Washington is close.
Journalist Sally Lockwood in Dubai says the developments highlight how fragile the situation is.
IN: 'Overnight...
OUT: ...Abbas.'
DUR: 21 seconds
http://www.fsnradionews.com/feeds/0526iran-lockwood1.mp3
ALT:
Defence expert Professor Paul Rogers says negotiations on a peace deal will continue.
IN: 'I think...
OUT: ...deal.'
DUR: 22 seconds
http://www.fsnradionews.com/feeds/0526iran-rogers1.mp3
The developments come despite diplomatic moves towards a peace deal.
Tehran has downplayed suggestions an agreement with Washington is close.
Journalist Sally Lockwood in Dubai says the developments highlight how fragile the situation is.
IN: 'Overnight...
OUT: ...Abbas.'
DUR: 21 seconds
http://www.fsnradionews.com/feeds/0526iran-lockwood1.mp3
ALT:
Defence expert Professor Paul Rogers says negotiations on a peace deal will continue.
IN: 'I think...
OUT: ...deal.'
DUR: 22 seconds
http://www.fsnradionews.com/feeds/0526iran-rogers1.mp3