In the wake of the attack on senior Bharatiya Janata Party leader and former Union minister Ravi Shanker Prasad at an election rally in Bihar, Chief Election Commissioner B B Tandon Thursday spoke to state Chief Secretary G S Kang and expressed concern over security arrangements.

• Former I&B minister Ravi Shankar Prasad shot at, out of danger

"It was unfortunate and I expressed my concern to the chief secretary and asked the district authorities to be more alert," Tandon told PTI.

• Breakdown of law and order, says BJP

"The chief secretary said he was inquiring into the incident thoroughly," Tandon said.

The Election Commission has provided adequate security in naxal-infested areas of Bihar, the CEC said.