RNLI said a lifeboat was launched at 1.32am on March 17. As video from the RNLI shows, the men were clinging on by their fingertips at the bottom of a slipway.Kevin Maynard, Tower RNLI lifeboat station manager, said: “We could hear shouting as we arrived and someone in the crowd was flashing a light into the water to guide us to the casualties. There were three men in the river who were trying to cling onto a bit of wall but the tide was sweeping them along. As the boat arrived on scene, one of the men lost his grip on the wall and sank below the water. “In a panic, he then grabbed one of the other men and pulled him from the wall, with both men now struggling to stay afloat. We arrived just in time and got all three safely aboard the lifeboat. “One of the men was suffering from hypothermia and the others were freezing cold. All three had swallowed a lot of water – they were lucky lads and could all too easily have died. We’ve chalked this up as three lives saved.” Credit: YouTube/RNLI">