Areas affected include Computer Village, Underbridge Awolowo Way, Oba Akran axis, Onifowose Street and Medical Road.
The National Emergency Management Agency (NEMA) warned against naked light to prevent explosion over massive gas pipeline leakages in the axis.
Acting Southwest Coordinator, Ibrahim Farinloye, while appealing to the people to avoid opening their shops or igniting naked flames, urged that utmost safety precautions must be taken to avert any disaster.
The alert created a panic as many traders and residents moved away from the vicinity.
The situation created a traffic girdlock with many residents running helter skelter.