World football governing body, FIFA, has said it is reviewing security plans for Nigeria home game against Namibia in Calabar after the Nigeria Football Federation was forced to move the game from Kaduna due to insecurity in the northern state.
Bomb attacks by Islamic sect, Boko Haram, had rendered Kaduna unsafe for international games.
FIFA described the security plans for the match as "comprehensive and very thorough."
The football body told AP on Wednesday that World Cup qualifiers involving Egypt and Libya next month will be played without fans.
Egypt versus Mozambique in Alexandria on June 1 and Libya versus Cameroon in Sfax, Tunisia on June 10 will be behind closed doors. Mali's game against Algeria could be moved out of the West African country after the president was toppled in a coup.
FIFA and CAF had yet to decided if the Mali versus Algeria match would go ahead in Mali after recent violence in the capital Bamako following the coup in March and fighting involving countercoup forces this month.
Sunshine Stars and Al-Ahly of Egypt, were stranded in Bamako two weeks ago during fighting after playing their CAF Champions League games.
"A final decision following further discussions between FIFA and CAF is likely to be made in the next few days," FIFA said on the venue.
FIFA had also asked for security plans from Kenya before its qualifying competition, but added it was "not unusual."
Kenya host Malawi on June 2 in Nairobi, which has seen hit-and-run grenade attacks in the last few months that were blamed on Somali militant group al-Shabab.