Japanese businesses are rushing to get their employees and their families out of Egypt following President Hosni Mubarak's announcement not to seek re-election, but many of them have not been able to leave the chaotic north African nation because of airport crowds, the companies said Wednesday.

Major trader Marubeni Corp. said it was looking for ways to help its employees leave the country, as they were having trouble securing flights due to the congestion. Trading house Sojitz Corp. also said it had not been able to book flights for its employees.

Sumitomo Corp., another trader, said it has given priority to employees with families to leave the country. But it remained unknown as of Tuesday evening whether they were able to make it to local airports.