Mumbai, July 9 -- The Indian rupee slumped further in opening trades on Thursday as international crude oil prices rebounded as US President reportedly threatened to bomb Iran for a second day and reimpose the US naval blockade in retaliation for attacks on tankers transiting the Strait of Hormuz. US President Donald Trump said the ceasefire with Iran has ended, stoking concerns that a renewal of war could again drive inflation and push up interest rates. This could reinforce expectations that the US Federal Reserve (Fed) may keep interest rates higher for longer to combat stubborn inflation. INR opened at Rs 95.52 per dollar and hit a low of 95.58 so far during the day. Yesterday, rupee tanked 59 paise to settle at 95.55 against the US d...