Turkish doctors express concern about tear gas

View photos
Protesters talk at the Gezi Park of Taksim Square in Istanbul, Monday June 10, 2013. Turkey's main opposition party leader Kemal Kilicdaroglu has called on the prime minister Recep Tayyip Erdogan to stop escalating tensions as anti-government protests that have led to three deaths entered their 11th day. (AP Photo/Thanassis Stavrakis)

ANKARA, Turkey (AP) — Turkey's Doctors Association says it has asked authorities to reveal the chemical content of the tear gas that has been fired at protesters.

A human rights group says nearly 5,000 people have sought medical care since the protests began 11 days ago, many for the effects of tear gas.

"We note that those chemical agents have been used intensively in the past two weeks in Turkey," Bayazit Ilhan, the doctors association's secretary-general, told reporters on Monday. "The protesters and doctors have serious concerns about the content of chemicals used and the amount (used)."

Rights groups have accused police of using excessive force on protesters while Turkey's allies have expressed concerns over the number of people who have been hurt.