MUMBAI, INDIA - The Indian military launched a grenade attack Friday on Mumbai's Taj Mahal Hotel to flush out at least one militant who returned fire, scattering media assembled opposite the building.

Four grenades were launched into a part of the hotel where the militant or militants were believed to be hiding. Fire was returned and an AFP camerawoman at the scene was struck in the leg by a splinter and taken to hospital.

Her condition was not serious.

Police said earlier "a substantial amount" of explosives were found at the Taj that could have caused "major damage".

"At least one terrorist or maximum two" were holed up in the ballroom of the Taj, but no hostages were left inside "to the best of our knowledge", Maharashtra state police chief A.N. Roy told Indian television.

The Taj was one of two luxury hotels seized by extremists late Wednesday after coordinated attacks across the city that left at least 130 dead.