Police say at least 23 people have been killed in an explosion set off by Maoist rebels in central India's Chattisgarh state.
Police say at least 33 people were injured Tuesday's attack.
Officials said the rebels blew up a vehicle filled with anti-Maoist activists near the town of Darbhaguda.
The killings came on the eve of President Bush's visit to India.
The militants have launched several bloody attacks on the area over the past month.
Paramashish Ghosh Roy has more on the story.