A DROPPED beer bottle and a pair of stilettos were too much for the glass floor at London’s Tower Bridge to handle — shattering it to pieces.

Part of one of the six-ton panes of glass which form a transparent bridge 50 metres above the chilly waters of the Thames was badly damaged during the incident.

Initially the panel cracked when a bottle of beer fell from a tray during an event.

Then a guest’s stiletto heels caused the pane to completely shatter.

Peter Gordon was in the tower when the drama unfolded and posted this on Twitter.

Was in tower bridge walkway today, someone dropped a beer bottle; this happened pic.twitter.com/fYFju69XBS — Peter Gordon (@the1gordo) November 21, 2014

Tower Bridge officials tried to reassure visitors, insisting that the glass was just a top layer – designed to be easily replaced in the event of such an incident.

“A sacrificial layer of glass shattered, when an empty beer bottle fell from a tray being carried by a member of the catering team. The floor was immediately inspected,’ Chris Earlie, head of Tower Bridge said.

The 1.5 million dollar attraction remained open and the cracked glass was covered with a mat.

It’s now been replaced.

media_camera Would you? ... The glass floor panels along the bridge's high-level walkways weigh 300 kgs each.

Originally published as Glass walkway above Thames shatters