By Ivana Sekularac
OBRENOVAC, Serbia, June 3 (Reuters) - Pavle Pavlovic never heard the flood siren at 5 a.m. on Friday, May 16, when the waters of the nearby Kolubara River had already entered the Serbian town of Obrenovac.
The 37-year-old power plant worker woke three hours later to find his street submerged. Like thousands of others, he was trapped.
"There was no warning that our ...