Two passenger trains derailed in central India Tuesday night. Officials say monsoon rains flooded the tracks, causing the accident, according to the Associated Press. Casualty numbers continue to rise - officials currently report 20 dead, according to the Times of India. A reported 250 have been rescued, according to the AP.

The two trains were going in opposite directions and derailed within minutes of one another, according to Al Jazeera. Carriages of both trains fell into an overflowed river in Madhya Pradesh.

The two train lines involved in the accident were the Kamayani Express, which was headed towards Mumbai, and the Janata Express, which was headed in the opposite direction, according to the AP.

Death tolls rise as reports continue to flood in. Eyewitnesses state that, "many people may have been washed away," according to Al Jazeera.

Reports vary, but between seven and 15 carriages may have been submerged in the Machak River after the derailment, according to Al Jazeera. Carriages usually transport 72 passengers each.

Flash flood and severe weather warnings were issued throughout the area before the accident, according to the AP.

Railway accidents have been a major problem in India, safety standards causing major concern. India's railway network stretches across the state, transporting 9,000 passenger trains and 23 million passengers daily, according to the BBC.

Rescue teams are still on the scene.