KARACHI (Reuters) - The Pakistani rupee strengthened on Tuesday after falling to a record low the previous day as dealers suspected there could be possible verbal central bank intervention. The rupee ended at 85.57/63 to the dollar, compared with Mondays close of 85.85 after it hit a record low at 86.50. It seems like there have been more intervention but the outlook for the rupee is still weak, said a bank dealer. There are concerns about the growing tensions with the West which could choke off much needed foreign aid. Foreign exchange reserves also eased to $16.97b in the week ending on May 14 after reaching a record high of $17.95b in March, due to scheduled debt repayments. Concerns over a reduction in foreign aid have flared since US special forces found and killed al Qaeda leader Osama bin Laden early this month in a house near the Pakistani capital. The rupee has lost 1.24 percent of its value since then, almost the same as its total loss of 1.53 percent in 2010. The rupees slump to a record low comes a little over a month after it rose to an 11-month high suggesting its outlook has weakened because of uncertainty following bin Ladens death.