Dhaka, Dec. 6 -- BNP Chairperson Begum Khaleda Zia is currently not fit to travel by air, according to the latest assessment of the medical board treating her at the capital's Evercare Hospital.

Dr AZM Zahid Hossain, one of her physicians, said on Saturday that Khaleda's travel to London for advanced treatment will be delayed until she is medically declared fit to fly by an air ambulance.

Some senior BNP leaders, however, said an air ambulance might arrive in Dhaka on Tuesday if she becomes fit to fly, and she could be taken to London on Wednesday.

A doctor from the medical board, wishing anonymity, said on Saturday evening that Khaleda's condition has slightly improved but she is still not able to travel.

"Her condition is better tha...