Prisoners beat up police who stormed into Welikada jail to carry out a search for hidden narcotics as part of a nation-wide anti-drug drive, they said.
The Director of Colombo National Hospital, Hector Weerasinghe, said 42 people were brought for treatment following the violence.
"We are not sure of the identity of the victims, but we have 42 people brought for treatment," Weerasinghe said.
The clash came after an announcement by the police who said over 11,000 suspects have been arrested in the drive and a large quantity of narcotics was also seized.
The raids, which started three weeks ago, led to over 3,000 court cases, with more to be filed soon, spokesman Prishantha Jayakody said.
The drug search was being extended to the Welikada prison today.
Colombo: Prisoners and police clashed during a drug raid at Sri Lanka's main prison here on Sunday, leaving at least 42 people wounded, officials said.
First Published: Sunday, November 07, 2010, 15:20