Police in Bangladesh fired tear gas and rubber bullets on Monday to break up demonstrations. Protesters said at least 40 people, many of them students, were injured. The protesters are demanding better enforcement of traffic safety laws and better protection for those traveling by foot near schools. Hundreds of students clashed with police in the Bashundhara area of Dhaka, the capital. The area is home to a few private universities. Police used tear gas against protesters at Dhaka’s East West University. Another group of students marched across the grounds of Dhaka University. They called for justice and criticized the government. Tens of thousands of people have taken part in the demonstrations since they began last week. The protests started after two students were killed by speeding buses. Other students took to the streets, mainly in places where traffic accidents happened.